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Round|Lab Grown|GIA

5.99ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 6515898090

Certificate GIA 6515898090

Diamond specifications and retailer prices

From $39,555 SGD
$30,941 USD
As of October 31, 2026
Save $28,239 SGD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $67,794 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 5.99ct lab-grown round diamond

This 5.99ct 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 6515898090. Listed at 11 retailers as of October 29, 2026, with prices from $39,555 to $67,794, a $28,239 spread on the same certified stone. MOH London lists it at $67,794. 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

5.99
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6515898090
Dimensions11.62 × 11.55 × 7.21 mm
L/W Ratio1.01
Culet sizeNone
Top View
11.62 mm11.55 mm5.99 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515898090
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $67,794 SGD|Low: $32,254 SGD|High: $168,468 SGD|Avg: $71,268 SGD|-6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$32,254 SGD
Retailer 11$39,555 SGD
Retailer 10$39,711 SGD
Retailer 7$46,928 SGD
Retailer 2$54,199 SGD
Retailer 5$55,534 SGD
Retailer 9$61,237 SGD
MOH London$67,794 SGD
Retailer 4$92,217 SGD
Retailer 8$113,330 SGD
Retailer 3$151,621 SGD

28 data points across 11 retailers

11 retailers$39,555 SGD to $67,794 SGD

Retailer 1
-
$32,254 SGD
$25,230 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$39,555 SGD
$30,941 USD
View
B+
Retailer 3
-
$39,711 SGD
$31,063 USD
View
B+
Retailer 4
-
$46,928 SGD
$36,708 USD
View
B+
Retailer 5
-
$54,199 SGD
£33,383 GBP
View
B+
Retailer 6
-
$55,534 SGD
$43,440 USD
View
B
Retailer 7
-
$61,237 SGD
$47,901 USD
View
Most Expensive
B
MOH London
6515898090 · Oct 29
$67,794 SGD
£41,756 GBP
View
7 more retailers have this diamond
Prices start from $39,555 SGDSave up to $28,239 SGD

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.

B+
5.99ct Round
$39,555 SGD