[JA] Kunlun Growth インサイト | Lab-Grown Diamond ブログ

January 4, 2026

2026年の価格崩壊？中国の工場価格が新しい底値である理由

物理学vs経済学：電クリよりも安くダイヤモンドを育てることはできない理由、そして「自由落下」が終わった理由。

Kunlun Growth Quality Promise

Certificates don't tell the whole story. We reject ~35% of diamonds that pass standard IGI inspections but fail our internal checks.

No Brown/Green Tint: Every stone is compared against our Master Set.
No BGM (Milkiness): We filter out hazy crystal structures.
Eye-Clean Guarantee: Real-world visual inspection, not just 10x loupe.

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Need Reliable Lab Diamond Supply?

Don't gamble on quality. Access our live inventory of 5,000+ vetted CVD & HPHT stones.

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December 31, 2025

Why Independent Designers Are Switching to HPHT: Custom Cuts & 最低注文数なしs

Forget the 50ct minimums. Discover how 1-piece custom orders and unique HPHT cuts are empowering indie jewelry brands.

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November 21, 2025

The Future of Lab-Grown Diamonds: 2026-2030 Predictions

Market predictions, technology trends, and strategic opportunities in the next 5 years.

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November 22, 2025

Negotiating with Chinese Suppliers: Cultural Do's and Don'ts

How to build long-term relationships with Chinese diamond suppliers. Cultural insights for Western buyers.

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November 23, 2025

The Sustainability Argument: Real Impact or Greenwashing?

Lab-grown diamonds are marketed as eco-friendly. But what's the actual carbon footprint?

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November 24, 2025

Bridal Sets vs Loose Stones: What Retailers Should Stock

Should you sell finished rings or loose stones? Data-driven inventory strategy for maximum profit.

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November 25, 2025

How Brick-and-Mortar Jewelers Can Beat Online Giants

Competing with Blue Nile and James すべてen. Your advantages and how to use them.

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November 26, 2025

Colored Lab-Grown Diamonds: The Next Big Thing?

Pink, blue, and yellow lab-grown diamonds at 1/10 the price of natural. Market opportunity or passing fad?

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November 27, 2025

The Resale Value Myth: Do Lab-Grown Diamonds Hold Value?

Spoiler: Natural diamonds don't hold value either. Here's the truth about diamond resale markets.

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November 28, 2025

Why Cut Quality Matters More Than Color or Clarity

A poorly cut D VVS1 looks worse than a well-cut G VS2. Learn why cut is the most important C.

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November 29, 2025

Insurance and Shipping: How to Protect $50k+ Diamond Shipments

Step-by-step guide to insuring high-value diamond shipments from China. Brink's, Malca-Amit, or FedEx?

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November 30, 2025

The African Market: Why Nigeria and Kenya Are the Next LGD Frontiers

Africa's growing middle class is driving diamond demand. Learn why Lagos and Nairobi are becoming key markets.

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December 2, 2025

Lab-Grown vs Natural: The Smart Retailer's Dual Strategy

Should you replace natural diamonds or offer both? Here's the data-driven strategy for maximizing revenue.

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December 1, 2025

The Color Grading Controversy: Why D-E-F Isn't Always Better

Stop overpaying for D color. Learn when G-H-I stones offer better value and why most customers can't tell the difference.

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December 10, 2025

How to Read an IGI Certificate: The Hidden Details That Matter

Most buyers only look at the 4Cs. Learn how to read the comments section and clarity plot to avoid problem stones.

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December 10, 2025

Dubai's Lab-Grown Diamond Opportunity: The DMCC Pivot

Why DMCC traders are setting up HPHT supply chains from China and how to capture the margin.

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December 4, 2025

US Retailers: Your Customers Don't Care About HPHT vs CVD

Stop overthinking the growth method. Here's what American consumers actually want.

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December 3, 2025

Payment Terms in the Diamond Trade: T/T, LC, or Consignment?

Understanding payment methods when sourcing from China and how to negotiate better terms.

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December 9, 2025

The Real Cost of Lab-Grown Diamonds: Why $50/ct Is the Floor

Breaking down electricity, graphite, labor, and certification costs to show you the true production floor.

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December 8, 2025

How to Spot Fake IGI Certificates (And Avoid Getting Scammed)

Certificate fraud is real. Learn the 5 red flags that indicate a fake IGI report.

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December 8, 2025

Why Indian Jewelers Are Switching to Chinese HPHT Melee

The Surat paradox: why India's polishing capital is now importing finished melee from Henan.

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December 7, 2025

The Ultimate Guide to Importing Lab-Grown Diamonds

How to clear customs, handle HS codes, and insure your shipment from China. No headaches.

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December 6, 2025

Not Just Rounds: Why Fancy Cuts Are Your Growth Engine

Elongated Ovals, Radiants, and Emeralds. Why proprietary cuts offer higher margins.

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December 5, 2025

Inside the Source: A Tour of Henan's HPHT Factories

See the massive technology (Cubic Press) that grows 50% of the world's lab diamonds.

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December 12, 2025

Why We Reject 35% of "Certified" Diamonds

Certificates don't tell the whole story. See how our "Eye-Clean+" standard saves you from bad stones.

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December 12, 2025

2026 Forecast: LGD Price Stabilization?

Is the price drop over? We analyze production costs in China and predicting the "electricity floor".

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December 12, 2025

Trend Alert: Elongated Ovals (No Bow-Ties)

The "Goldilocks Ratio" (1.45) that designers are demanding in 2026. How to source them right.

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December 2025

Wholesale HPHT Melee: The Best Small Stones

Why HPHT is the industry standard for calibrated melee diamonds (0.01ct - 0.20ct) used in pavé settings.

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December 2025

The Ethical Choice: Sustainability & Human Rights

Why HPHT diamonds are the 100% conflict-free and eco-friendly alternative to mining.

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December 2025

The Truth About HPHT Clarity: VVS vs VS

Worried about metal inclusions? Learn how modern HPHT technology ensures clean, high-clarity stones.

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December 2025

2025 Lab-Grown Diamond Price Guide

Discover why sourcing HPHT diamonds direct from China saves you 20-40%.

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December 8, 2025

HPHT vs. CVD: Which is Better for High-End Jewelry?

Why HPHT technology produces superior color stability and structure for D-E color diamonds.

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