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Round|Lab Grown|GIA

6.51ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 2538403883

Certificate GIA 2538403883

Diamond specifications and retailer prices

From €12,119 EUR
$13,539 USD
As of November 1, 2026
Save €42,784 EUR (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €54,903 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.51ct lab-grown round diamond

This 6.51ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2538403883. Listed at 10 retailers as of October 31, 2026, with prices from €12,119 to €54,903, a €42,784 spread on the same certified stone. With Clarity lists it at €54,903. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.51
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 2538403883
Dimensions11.88 × 11.83 × 7.44 mm
L/W Ratio1.00
Top View
11.88 mm11.83 mm6.51 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2538403883
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €16,370 EUR|Low: €11,756 EUR|High: €53,805 EUR|Avg: €24,717 EUR|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 1, 2026
Retailer 6€12,119 EUR
Retailer 9€13,044 EUR
Retailer 5€16,224 EUR
Retailer 1€16,370 EUR
Retailer 4€21,279 EUR
Retailer 3€21,616 EUR
Retailer 7€22,635 EUR
Retailer 2€23,714 EUR
Retailer 8€37,888 EUR
With Clarity€53,805 EUR

40 data points across 10 retailers

10 retailers€12,119 EUR to €54,903 EUR

A
Cheapest Retailer
-
€12,119 EUR
$13,539 USD
A
Retailer 2
-
€13,044 EUR
$14,573 USD
View
Retailer 3
-
€16,224 EUR
$18,125 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
€16,370 EUR
£14,400 GBP
View
B+
Retailer 5
-
€21,279 EUR
£18,719 GBP
View
B+
Retailer 6
-
€21,616 EUR
$24,150 USD
View
B+
Retailer 7
-
€22,635 EUR
$25,288 USD
View
B+
Retailer 8
-
€23,714 EUR
View
B
Retailer 9
-
€37,888 EUR
$42,329 USD
View
Most Expensive
B
With Clarity
2538403883 · Oct 31
€54,903 EUR
$61,338 USD
View
9 more retailers have this diamond
Prices start from €12,119 EURSave up to €42,784 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
6.51ct Round
€12,119 EUR