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Radiant|Lab Grown|IGI

1.57ct I VS1 Radiant Lab Grown Diamond

VG • I/VS1 • IGI LG681504532

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

Certificate IGI LG681504532

Diamond specifications and retailer prices

From £137 GBP
$184 USD
As of October 30, 2026
Save £672 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £809 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG681504532 or 681504532. Listed at 14 retailers as of October 26, 2026, with prices from £137 to £809, a £672 spread on the same certified stone. MOH London lists it at £809. 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

1.57
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681504532
Dimensions8.41 × 5.61 × 3.89 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.41 mm5.61 mm1.57 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681504532
Side View
Table 63.0%Crown 44°Girdle: MediumPavilion 34.1°Culet: NoneDepth 69.3%

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: Oct 30
Current: £809 GBP|Low: £111 GBP|High: £820 GBP|Avg: £371 GBP|-0.9%
MOH London
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
October 31, 2026
Retailer 9£137 GBP
Retailer 6£156 GBP
Retailer 13£162 GBP
Retailer 12£171 GBP
Retailer 4£175 GBP
Retailer 14£297 GBP
Retailer 10£302 GBP
Retailer 5£310 GBP
Retailer 7£348 GBP
Retailer 8£366 GBP
Retailer 3£556 GBP
Retailer 2£580 GBP
Retailer 11£589 GBP
MOH London£809 GBP

30 data points across 14 retailers

14 retailers£137 GBP to £809 GBP

A
Cheapest Retailer
-
£137 GBP
$184 USD
A
Retailer 2
-
£156 GBP
$209 USD
View
Final sale: no returns
A
Retailer 3
-
£162 GBP
$217 USD
View
A
Retailer 4
-
£171 GBP
$229 USD
View
A
Retailer 5
-
£175 GBP
$235 USD
View
A
Retailer 6
-
£297 GBP
ZAR 6,427 ZAR
View
B+
Retailer 7
-
£302 GBP
$404 USD
View
Retailer 8
-
£310 GBP
€395 EUR
View
Price last confirmed 8 days ago
A
Retailer 9
-
£348 GBP
$466 USD
View
A
Retailer 10
-
£366 GBP
$490 USD
View
B+
Retailer 11
-
£556 GBP
$745 USD
View
B+
Retailer 12
-
£580 GBP
$777 USD
View
B+
Retailer 13
-
£589 GBP
$789 USD
View
Most Expensive
B
MOH London
LG681504532 · Oct 26
£809 GBP
View
13 more retailers have this diamond
Prices start from £137 GBPSave up to £672 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
1.57ct Radiant
£137 GBP