Radiant|Lab Grown|IGI

0.91ct J VS1 Radiant Lab Grown Diamond

VG • J/VS1 • IGI LG407950376

Shape and cutting style on the report: Radiant cut

Certificate IGI LG407950376

Diamond specifications and retailer prices

From £403 GBP
As of November 6, 2026
Save £1,294 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,761 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG407950376 or 407950376. Listed at 11 retailers as of November 4, 2026, with a 321% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.91
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle43.9°
Pavilion angle30.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407950376
Dimensions6.34 × 4.96 × 3.22 mm
L/W Ratio1.28
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.34 mm4.96 mm0.91 ctJ / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407950376
Side View
Table 64.5%Crown 43.9°Girdle: Slightly ThickPavilion 30.5°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,761 GBP|Low: £403 GBP|High: £3,171 GBP|Avg: £1,352 GBP|-1.3%
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
November 5, 2026
Retailer 6£403 GBP
Retailer 8£637 GBP
Retailer 12£693 GBP
Retailer 13£712 GBP
Retailer 9£739 GBP
Retailer 3£870 GBP
Retailer 4£1,121 GBP
Retailer 10£1,189 GBP
Retailer 2£1,430 GBP
Retailer 7£1,697 GBP
Retailer 11£2,076 GBP
MOH London£2,761 GBP
Retailer 5£3,171 GBP

24 data points across 13 retailers

11 retailers£403 GBP to £1,697 GBP

B+
Cheapest Retailer
-
£403 GBP
B
Retailer 2
-
£637 GBP
View
B
Retailer 3
-
£693 GBP
View
B
Retailer 4
-
£712 GBP
View
Final sale: no returns
Retailer 5
-
£738 GBP
View
Price last confirmed 21 days ago
B
Retailer 6
-
£739 GBP
View
C
Retailer 7
-
£1,189 GBP
View
B
Retailer 8
-
£1,430 GBP
View
C
Retailer 9
-
£1,697 GBP
View
Retailer 10
-
£2,076 GBP
View
Price under review
Most Expensive
MOH London
LG407950376 · Nov 5
£2,761 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £403 GBPSave up to £1,294 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.

B+
0.91ct Radiant
£403 GBP