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Round|Lab Grown|GIA

5.09ct D FL Round Lab Grown Diamond

EX • D/FL • GIA 2526568503

Certificate GIA 2526568503

Diamond specifications and retailer prices

From HK$295,712 HKD
$37,691 USD
As of October 31, 2026
Save HK$23,168 HKD (7%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$318,881 HKD at William & Sons Jewelers · As of October 31, 2026
View at William & Sons Jewelers

About this 5.09ct lab-grown round diamond

This 5.09ct 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 2526568503. Listed at 15 retailers as of October 31, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

5.09
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 2526568503
Dimensions11.11 × 11.05 × 6.80 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
11.11 mm11.05 mm5.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526568503
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.3%

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: HK$619,521 HKD|Low: HK$162,307 HKD|High: HK$2,081,464 HKD|Avg: HK$555,162 HKD|+3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
William & Sons Jewelers
October 31, 2026
Retailer 7HK$162,307 HKD
Retailer 8HK$191,686 HKD
Retailer 6HK$260,030 HKD
Retailer 14HK$274,825 HKD
Retailer 5HK$295,712 HKD
Retailer 10HK$300,373 HKD
Retailer 12HK$308,352 HKD
Retailer 13HK$316,260 HKD
William & Sons JewelersHK$318,881 HKD
Retailer 9HK$421,569 HKD
Retailer 2HK$538,953 HKD
Retailer 1HK$619,521 HKD
Retailer 4HK$619,522 HKD
Retailer 15HK$737,786 HKD
Retailer 16HK$1,163,642 HKD
Retailer 11HK$1,208,709 HKD
Retailer 3HK$1,374,440 HKD

28 data points across 17 retailers

15 retailersHK$295,712 HKD to HK$318,881 HKD

Retailer 1
-
HK$162,307 HKD
$20,687 USD
Price last confirmed 111 days ago
Retailer 2
-
HK$274,825 HKD
£27,582 GBP
View
Price last confirmed 30 days ago
Retailer 3
-
HK$284,713 HKD
$36,289 USD
View
Price last confirmed 41 days ago
Retailer 4
-
HK$284,713 HKD
$36,289 USD
View
Price last confirmed 40 days ago
B
Retailer 5
-
HK$295,712 HKD
$37,691 USD
View
B
Retailer 6
-
HK$300,373 HKD
$38,285 USD
View
B
Retailer 7
-
HK$308,352 HKD
$39,302 USD
View
B+
Retailer 8
-
HK$316,260 HKD
$40,310 USD
View
Most Expensive
B
William & Sons Jewelers
cert_2526568503 · Oct 31
HK$318,881 HKD
$40,644 USD
View
Final sale: no returns
8 more retailers have this diamond
Prices start from HK$295,712 HKDSave up to HK$23,168 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.

B+
5.09ct Round
HK$295,712 HKD