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Radiant|Lab Grown|IGI

12.10ct H VS1 Radiant Lab Grown Diamond

GD • H/VS1 • IGI LG589390525

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG589390525

Diamond specifications and retailer prices

From £1,638 GBP
$2,195 USD
As of November 2, 2026
Save £8,885 GBP (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £10,523 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.1ct lab-grown radiant diamond

This 12.1ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG589390525 or 589390525. Listed at 14 retailers as of October 31, 2026, with prices from £1,638 to £10,523, a £8,885 spread on the same certified stone. Brilliant Earth lists it at £10,523. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

12.10
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589390525
Dimensions15.96 × 11.33 × 7.74 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
15.96 mm11.33 mm12.10 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589390525
Side View
Table 65.0%Crown 45.9°Girdle: MediumPavilion 35.9°Culet: NoneDepth 68.3%

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 2
Current: £10,523 GBP|Low: £1,042 GBP|High: £12,844 GBP|Avg: £3,809 GBP|-18.1%
Brilliant Earth
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
November 1, 2026
Retailer 5£1,458 GBP
Retailer 10£1,638 GBP
Retailer 6£1,733 GBP
Retailer 15£1,978 GBP
Retailer 11£2,338 GBP
Retailer 4£2,371 GBP
Retailer 9£2,465 GBP
Retailer 12£2,604 GBP
Retailer 2£2,799 GBP
Retailer 3£3,128 GBP
Retailer 13£4,198 GBP
Retailer 7£4,942 GBP
Retailer 14£5,112 GBP
Retailer 16£5,297 GBP
Retailer 8£5,937 GBP
Brilliant Earth£10,523 GBP

32 data points across 16 retailers

14 retailers£1,638 GBP to £10,523 GBP

A
Cheapest Retailer
-
£1,638 GBP
$2,195 USD
Retailer 2
-
£1,733 GBP
$2,322 USD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
£1,978 GBP
$2,650 USD
View
B+
Retailer 4
-
£2,338 GBP
ZAR 50,614 ZAR
View
B+
Retailer 5
-
£2,371 GBP
$3,177 USD
View
B+
Retailer 6
-
£2,465 GBP
€3,145 EUR
View
B+
Retailer 7
-
£2,604 GBP
$3,489 USD
View
B
Retailer 8
-
£2,799 GBP
A$5,769 AUD
View
B+
Retailer 9
-
£3,128 GBP
View
B
Retailer 10
-
£4,198 GBP
$5,625 USD
View
Retailer 11
-
£4,942 GBP
$6,621 USD
View
Price last confirmed 21 days ago
B
Retailer 12
-
£5,112 GBP
$6,850 USD
View
B
Retailer 13
-
£5,297 GBP
$7,098 USD
View
Most Expensive
C
Brilliant Earth
7716507A · Oct 31
£10,523 GBP
$14,100 USD
View
13 more retailers have this diamond
Prices start from £1,638 GBPSave up to £8,885 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
12.10ct Radiant
£1,638 GBP