Round|Lab Grown|GIA

6.59ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 6535577982

Certificate GIA 6535577982

Diamond specifications and retailer prices

From $13,699 USD
As of November 1, 2026
Save $48,393 USD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $62,092 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.59ct lab-grown round diamond

This 6.59ct 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 6535577982. Listed at 10 retailers as of October 31, 2026, with prices from $13,699 to $62,092, a $48,393 spread on the same certified stone. With Clarity lists it at $62,092. 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

6.59
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6535577982
Dimensions12.17 × 12.11 × 7.33 mm
L/W Ratio1.00
Top View
12.17 mm12.11 mm6.59 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535577982
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.3%

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: $18,512 USD|Low: $13,289 USD|High: $60,850 USD|Avg: $28,049 USD|+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$13,699 USD
Retailer 9$14,752 USD
Retailer 5$18,300 USD
Retailer 1$18,512 USD
Retailer 3$24,450 USD
Retailer 4$25,206 USD
Retailer 7$25,845 USD
Retailer 2$26,818 USD
Retailer 8$42,330 USD
With Clarity$60,850 USD

40 data points across 10 retailers

10 retailers$13,699 USD to $62,092 USD

A
Cheapest Retailer
-
$13,699 USD
A
Retailer 2
-
$14,752 USD
View
Retailer 3
-
$18,300 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$18,512 USD
£14,577 GBP
View
B+
Retailer 5
-
$24,450 USD
View
B+
Retailer 6
-
$25,206 USD
£19,847 GBP
View
B+
Retailer 7
-
$25,845 USD
View
B+
Retailer 8
-
$26,818 USD
€25,541 EUR
View
B+
Retailer 9
-
$42,330 USD
View
Most Expensive
B
With Clarity
6535577982 · Oct 31
$62,092 USD
View
9 more retailers have this diamond
Prices start from $13,699 USDSave up to $48,393 USD

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
6.59ct Round
$13,699 USD