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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 £28,130 GBP
$37,691 USD
As of October 31, 2026
Save £2,204 GBP (7%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £30,334 GBP 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: £58,933 GBP|Low: £15,440 GBP|High: £198,001 GBP|Avg: £52,810 GBP|+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 7£15,440 GBP
Retailer 8£18,234 GBP
Retailer 6£24,736 GBP
Retailer 14£26,143 GBP
Retailer 5£28,130 GBP
Retailer 10£28,573 GBP
Retailer 12£29,332 GBP
Retailer 13£30,085 GBP
William & Sons Jewelers£30,334 GBP
Retailer 9£40,102 GBP
Retailer 2£51,268 GBP
Retailer 1£58,933 GBP
Retailer 4£58,933 GBP
Retailer 15£70,183 GBP
Retailer 16£110,693 GBP
Retailer 11£114,980 GBP
Retailer 3£130,745 GBP

28 data points across 17 retailers

15 retailers£28,130 GBP to £30,334 GBP

Retailer 1
-
£15,440 GBP
$20,687 USD
Price last confirmed 111 days ago
Retailer 2
-
£26,143 GBP
View
Price last confirmed 30 days ago
Retailer 3
-
£27,084 GBP
$36,289 USD
View
Price last confirmed 40 days ago
Retailer 4
-
£27,084 GBP
$36,289 USD
View
Price last confirmed 40 days ago
B
Retailer 5
-
£28,130 GBP
$37,691 USD
View
B
Retailer 6
-
£28,573 GBP
$38,285 USD
View
B
Retailer 7
-
£29,332 GBP
$39,302 USD
View
B+
Retailer 8
-
£30,085 GBP
$40,310 USD
View
Most Expensive
B
William & Sons Jewelers
cert_2526568503 · Oct 31
£30,334 GBP
$40,644 USD
View
Final sale: no returns
8 more retailers have this diamond
Prices start from £28,130 GBPSave up to £2,204 GBP

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
£28,130 GBP