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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 $18,913 CAD
$13,539 USD
As of November 1, 2026
Save $66,770 CAD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $85,683 CAD 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 $18,913 to $85,683, a $66,770 spread on the same certified stone. With Clarity lists it at $85,683. 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: $25,547 CAD|Low: $18,347 CAD|High: $83,969 CAD|Avg: $38,574 CAD|+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$18,913 CAD
Retailer 9$20,357 CAD
Retailer 5$25,319 CAD
Retailer 1$25,547 CAD
Retailer 4$33,209 CAD
Retailer 3$33,735 CAD
Retailer 7$35,325 CAD
Retailer 2$37,009 CAD
Retailer 8$59,129 CAD
With Clarity$83,969 CAD

40 data points across 10 retailers

10 retailers$18,913 CAD to $85,683 CAD

A
Cheapest Retailer
-
$18,913 CAD
$13,539 USD
A
Retailer 2
-
$20,357 CAD
$14,573 USD
View
Retailer 3
-
$25,319 CAD
$18,125 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$25,547 CAD
£14,400 GBP
View
B+
Retailer 5
-
$33,209 CAD
£18,719 GBP
View
B+
Retailer 6
-
$33,735 CAD
$24,150 USD
View
B+
Retailer 7
-
$35,325 CAD
$25,288 USD
View
B+
Retailer 8
-
$37,009 CAD
€25,232 EUR
View
B
Retailer 9
-
$59,129 CAD
$42,329 USD
View
Most Expensive
B
With Clarity
2538403883 · Oct 31
$85,683 CAD
$61,338 USD
View
9 more retailers have this diamond
Prices start from $18,913 CADSave up to $66,770 CAD

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
$18,913 CAD