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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 HK$106,223 HKD
$13,539 USD
As of November 1, 2026
Save HK$375,017 HKD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$481,240 HKD 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 HK$106,223 to HK$481,240, a HK$375,017 spread on the same certified stone. With Clarity lists it at HK$481,240. 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
Colour
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: HK$143,484 HKD|Low: HK$103,045 HKD|High: HK$471,613 HKD|Avg: HK$216,648 HKD|+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 6HK$106,223 HKD
Retailer 9HK$114,335 HKD
Retailer 5HK$142,203 HKD
Retailer 1HK$143,484 HKD
Retailer 4HK$186,517 HKD
Retailer 3HK$189,474 HKD
Retailer 7HK$198,402 HKD
Retailer 2HK$207,861 HKD
Retailer 8HK$332,100 HKD
With ClarityHK$471,613 HKD

40 data points across 10 retailers

10 retailersHK$106,223 HKD to HK$481,240 HKD

A
Cheapest Retailer
-
HK$106,223 HKD
$13,539 USD
A
Retailer 2
-
HK$114,335 HKD
$14,573 USD
View
Retailer 3
-
HK$142,203 HKD
$18,125 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
HK$143,484 HKD
£14,400 GBP
View
B+
Retailer 5
-
HK$186,517 HKD
£18,719 GBP
View
B+
Retailer 6
-
HK$189,474 HKD
$24,150 USD
View
B+
Retailer 7
-
HK$198,402 HKD
$25,288 USD
View
B+
Retailer 8
-
HK$207,861 HKD
€25,232 EUR
View
B
Retailer 9
-
HK$332,100 HKD
$42,329 USD
View
Most Expensive
B
With Clarity
2538403883 · Oct 31
HK$481,240 HKD
$61,338 USD
View
9 more retailers have this diamond
Prices start from HK$106,223 HKDSave up to HK$375,017 HKD

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
HK$106,223 HKD