Radiant|Lab Grown|IGI

12.57ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG722555615

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

Certificate IGI LG722555615

Diamond specifications and retailer prices

From £3,098 GBP
$4,151 USD
As of October 31, 2026
Save £9,487 GBP (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £20,696 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 12.57ct lab-grown radiant diamond

This 12.57ct 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 LG722555615 or 722555615. Listed at 20 retailers as of October 31, 2026, with a 306% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

12.57
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.8°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722555615
Dimensions17.13 × 11.02 × 7.06 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.13 mm11.02 mm12.57 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722555615
Side View
Table 62.0%Crown 50.8°Girdle: Slightly ThickPavilion 36.1°Culet: NoneDepth 64.1%

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: £20,696 GBP|Low: £3,098 GBP|High: £20,696 GBP|Avg: £6,104 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 4£3,098 GBP
Retailer 7£3,209 GBP
Retailer 13£3,209 GBP
Retailer 3£3,422 GBP
Retailer 10£4,340 GBP
Retailer 11£4,576 GBP
Retailer 6£4,618 GBP
Retailer 9£4,788 GBP
Retailer 5£4,970 GBP
Retailer 8£5,483 GBP
Retailer 2£6,671 GBP
Retailer 12£8,119 GBP
Do Amore Diamonds£20,696 GBP

41 data points across 13 retailers

20 retailers£3,098 GBP to £12,585 GBP

Retailer 1
-
£2,656 GBP
$3,559 USD
Price last confirmed 30 days ago
Retailer 2
-
£3,010 GBP
$4,033 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
£3,098 GBP
$4,151 USD
View
Final sale: no returns
B+
Retailer 4
-
£3,209 GBP
$4,300 USD
View
Retailer 5
-
£3,209 GBP
$4,300 USD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
£3,422 GBP
$4,585 USD
View
B+
Retailer 7
-
£4,340 GBP
$5,815 USD
View
Retailer 8
-
£4,426 GBP
$5,931 USD
View
Price last confirmed 32 days ago
B+
Retailer 9
-
£4,576 GBP
$6,132 USD
View
B+
Retailer 10
-
£4,618 GBP
View
Retailer 11
-
£4,788 GBP
$6,415 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£4,970 GBP
View
B+
Retailer 13
-
£5,483 GBP
ZAR 118,682 ZAR
View
B
Retailer 14
-
£5,615 GBP
$7,523 USD
View
B
Retailer 15
-
£6,671 GBP
A$13,751 AUD
View
B
Retailer 16
-
£8,119 GBP
$10,879 USD
View
B
Retailer 17
-
£8,834 GBP
$11,837 USD
View
B
Retailer 18
-
£12,585 GBP
$16,863 USD
View
Retailer 19
-
£19,031 GBP
$25,500 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-722555615 · Oct 31
£20,696 GBP
$27,730 USD
View
Price under review
19 more retailers have this diamond
Prices start from £3,098 GBPSave up to £9,487 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
12.57ct Radiant
£3,098 GBP