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Radiant|Lab Grown|GCAL

5.10ct D IF Radiant Lab Grown Diamond

EX • D/IF • GCAL 360846227

Shape and cutting style on the report: Radiant brilliant

Certificate GCAL 360846227

Diamond specifications and retailer prices

From £13,671 GBP
$18,318 USD
As of October 31, 2026
Save £17,816 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £31,488 GBP at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 5.1ct lab-grown radiant diamond

This 5.1ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 360846227. Listed at 15 retailers as of October 30, 2026, with prices from £13,671 to £31,488, a £17,816 spread on the same certified stone. Kay Jewelers lists it at £31,488. 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

5.10
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle36°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360846227
Dimensions12.08 × 8.58 × 5.80 mm
L/W Ratio1.41
Culet sizeNone
Top View
12.08 mm8.58 mm5.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360846227
Side View
Table 62.0%Crown 41.6°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 67.6%

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: Oct 31
Current: £31,488 GBP|Low: £13,671 GBP|High: £75,118 GBP|Avg: £30,021 GBP|+4.5%
Kay Jewelers
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
October 30, 2026
Retailer 3£13,671 GBP
Retailer 6£15,948 GBP
Retailer 12£15,948 GBP
Retailer 11£16,075 GBP
Retailer 15£17,595 GBP
Retailer 7£17,861 GBP
Retailer 10£18,226 GBP
Retailer 13£18,499 GBP
Retailer 9£20,877 GBP
Retailer 8£30,781 GBP
Kay Jewelers£31,488 GBP
Retailer 4£31,488 GBP
Retailer 14£46,403 GBP
Retailer 2£57,017 GBP
Retailer 5£71,446 GBP

29 data points across 15 retailers

15 retailers£13,671 GBP to £31,488 GBP

A
Cheapest Retailer
-
£13,671 GBP
$18,318 USD
B+
Retailer 2
-
£15,948 GBP
$21,368 USD
View
B+
Retailer 3
-
£15,948 GBP
$21,368 USD
View
B+
Retailer 4
-
£16,075 GBP
$21,539 USD
View
B+
Retailer 5
-
£17,861 GBP
$23,932 USD
View
Final sale: no returns
B+
Retailer 6
-
£18,226 GBP
$24,421 USD
View
B+
Retailer 7
-
£18,499 GBP
$24,787 USD
View
Retailer 8
-
£18,499 GBP
$24,787 USD
View
Price last confirmed 14 days ago
Retailer 9
-
£20,877 GBP
View
Price last confirmed 7 days ago
B
Retailer 10
-
£30,781 GBP
View
B
Retailer 11
-
£31,488 GBP
$42,190 USD
View
Most Expensive
B
Kay Jewelers
258607348 · Oct 30
£31,488 GBP
$42,190 USD
View
11 more retailers have this diamond
Prices start from £13,671 GBPSave up to £17,816 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.

A
5.10ct Radiant
£13,671 GBP