CaratHunter
Plans
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 $44,048 AUD
$30,941 USD
As of October 31, 2026
Save $31,446 AUD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $75,494 AUD 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 $44,048 to $75,494, a $31,446 spread on the same certified stone. MOH London lists it at $75,494. 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: $75,494 AUD|Low: $35,917 AUD|High: $187,602 AUD|Avg: $79,363 AUD|-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$35,917 AUD
Retailer 11$44,048 AUD
Retailer 10$44,221 AUD
Retailer 7$52,258 AUD
Retailer 2$60,355 AUD
Retailer 5$61,841 AUD
Retailer 9$68,192 AUD
MOH London$75,494 AUD
Retailer 4$102,691 AUD
Retailer 8$126,202 AUD
Retailer 3$168,842 AUD

28 data points across 11 retailers

11 retailers$44,048 AUD to $75,494 AUD

Retailer 1
-
$35,917 AUD
$25,230 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
$44,048 AUD
$30,941 USD
View
B+
Retailer 3
-
$44,221 AUD
$31,063 USD
View
B+
Retailer 4
-
$52,258 AUD
$36,708 USD
View
B+
Retailer 5
-
$60,355 AUD
£33,383 GBP
View
B+
Retailer 6
-
$61,841 AUD
$43,440 USD
View
B
Retailer 7
-
$68,192 AUD
$47,901 USD
View
Most Expensive
B
MOH London
6515898090 · Oct 29
$75,494 AUD
£41,756 GBP
View
7 more retailers have this diamond
Prices start from $44,048 AUDSave up to $31,446 AUD

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
$44,048 AUD