Radiant|Lab Grown|IGI

12.13ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG577377304

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

Certificate IGI LG577377304

Diamond specifications and retailer prices

From £1,714 GBP
$2,296 USD
As of November 1, 2026
Save £12,989 GBP (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £14,703 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.13ct lab-grown radiant diamond

This 12.13ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG577377304 or 577377304. Listed at 17 retailers as of October 31, 2026, with prices from £1,714 to £14,703, a £12,989 spread on the same certified stone. Brilliant Earth lists it at £14,703. 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

12.13
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577377304
Dimensions16.42 × 11.05 × 7.52 mm
L/W Ratio1.49
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
16.42 mm11.05 mm12.13 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577377304
Side View
Table 65.5%Crown 43.5°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £14,703 GBP|Low: £1,223 GBP|High: £15,158 GBP|Avg: £4,041 GBP|-3.0%
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
November 1, 2026
Retailer 6£1,714 GBP
Retailer 3£1,776 GBP
Retailer 5£2,141 GBP
Retailer 7£2,443 GBP
Retailer 12£2,638 GBP
Retailer 11£2,723 GBP
Retailer 14£2,778 GBP
Retailer 9£3,149 GBP
Retailer 2£3,290 GBP
Retailer 4£3,367 GBP
Retailer 8£3,755 GBP
Retailer 13£4,784 GBP
Retailer 10£6,797 GBP
Brilliant Earth£14,703 GBP

25 data points across 14 retailers

17 retailers£1,714 GBP to £14,703 GBP

Retailer 1
-
£1,470 GBP
$1,969 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£1,714 GBP
$2,296 USD
View
Final sale: no returns
Retailer 3
-
£1,776 GBP
$2,379 USD
View
Price last confirmed 29 days ago
Retailer 4
-
£2,440 GBP
$3,270 USD
View
Price last confirmed 32 days ago
A
Retailer 5
-
£2,443 GBP
View
Retailer 6
-
£2,723 GBP
ZAR 58,945 ZAR
View
Price last confirmed 17 days ago
A
Retailer 7
-
£2,778 GBP
$3,722 USD
View
Retailer 8
-
£2,848 GBP
$3,816 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
£3,149 GBP
$4,219 USD
View
B+
Retailer 10
-
£3,290 GBP
A$6,782 AUD
View
B+
Retailer 11
-
£3,367 GBP
View
B+
Retailer 12
-
£3,755 GBP
€4,792 EUR
View
B+
Retailer 13
-
£4,784 GBP
$6,410 USD
View
B
Retailer 14
-
£5,053 GBP
$6,770 USD
View
B
Retailer 15
-
£6,212 GBP
$8,323 USD
View
B
Retailer 16
-
£6,797 GBP
$9,107 USD
View
Most Expensive
B
Brilliant Earth
14113636A · Oct 31
£14,703 GBP
$19,700 USD
View
16 more retailers have this diamond
Prices start from £1,714 GBPSave up to £12,989 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
12.13ct Radiant
£1,714 GBP