Radiant|Lab Grown|IGI

0.91ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG528230331

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

Certificate IGI LG528230331

Diamond specifications and retailer prices

From £128 GBP
$171 USD
As of October 24, 2026
Save £589 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £717 GBP at Flawless Fine Jewelry · As of October 27, 2026
View at Flawless Fine Jewelry

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG528230331 or 528230331. Listed at 21 retailers as of October 24, 2026, with prices from £128 to £717, a £589 spread on the same certified stone. Flawless Fine Jewelry lists it at £717. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.91
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528230331
Dimensions7.29 × 4.78 × 3.10 mm
L/W Ratio1.53
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
7.29 mm4.78 mm0.91 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528230331
Side View
Table 64.5%Crown 39.1°Girdle: MED-STKPavilionCulet: NoneDepth 64.9%

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 24
Current: £717 GBP|Low: £123 GBP|High: £717 GBP|Avg: £365 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 4£123 GBP
Retailer 6£235 GBP
Retailer 10£237 GBP
Retailer 8£246 GBP
Retailer 13£252 GBP
Retailer 3£289 GBP
Retailer 5£316 GBP
Retailer 9£339 GBP
Retailer 2£388 GBP
Retailer 12£438 GBP
Retailer 11£463 GBP
Retailer 7£641 GBP
Flawless Fine Jewelry£717 GBP

43 data points across 13 retailers

21 retailers£128 GBP to £717 GBP

Retailer 1
-
£110 GBP
$147 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£128 GBP
$171 USD
View
A
Retailer 3
-
£137 GBP
$183 USD
View
A
Retailer 4
-
£137 GBP
$183 USD
View
A
Retailer 5
-
£153 GBP
HK$1,600 HKD
View
A
Retailer 6
-
£228 GBP
$306 USD
View
A
Retailer 7
-
£235 GBP
View
A
Retailer 8
-
£237 GBP
€302 EUR
View
A
Retailer 9
-
£246 GBP
ZAR 5,328 ZAR
View
A
Retailer 10
-
£252 GBP
$337 USD
View
Retailer 11
-
£289 GBP
View
Price last confirmed 21 days ago
B+
Retailer 12
-
£316 GBP
$423 USD
View
B+
Retailer 13
-
£339 GBP
A$699 AUD
View
B+
Retailer 14
-
£376 GBP
SGD 681 SGD
View
B+
Retailer 15
-
£388 GBP
$520 USD
View
B
Retailer 16
-
£438 GBP
$587 USD
View
B
Retailer 17
-
£463 GBP
$620 USD
View
B
Retailer 18
-
£479 GBP
$642 USD
View
B
Retailer 19
-
£641 GBP
View
B
Retailer 20
-
£647 GBP
View
Most Expensive
B
Flawless Fine Jewelry
8EB6BFDB9 · Oct 27
£717 GBP
View
20 more retailers have this diamond
Prices start from £128 GBPSave up to £589 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
0.91ct Radiant
£128 GBP