Radiant|Lab Grown|IGI

1.20ct D VVS2 Radiant Lab Grown Diamond

ID • D/VVS2 • IGI LG831658343

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

Certificate IGI LG831658343

Diamond specifications and retailer prices

From £169 GBP
$227 USD
As of November 2, 2026
Save £672 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,353 GBP at Queensmith · As of October 2, 2026
View at Queensmith

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831658343 or 831658343. Listed at 15 retailers as of November 1, 2026, with a 397% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831658343
Dimensions7.38 × 5.29 × 3.48 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm5.29 mm1.20 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831658343
Side View
Table 68.0%Crown 45.5°Girdle: MediumPavilion 33.8°Culet: NoneDepth 65.8%

Caratlytics Score

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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 2
Current: £1,353 GBP|Low: £122 GBP|High: £1,353 GBP|Avg: £447 GBP
Queensmith
Retailer 2
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November 3, 2026
Retailer 20£122 GBP
Retailer 7£142 GBP
Retailer 8£150 GBP
Retailer 10£158 GBP
Retailer 9£160 GBP
Retailer 4£275 GBP
Retailer 16£277 GBP
Retailer 17£305 GBP
Retailer 14£338 GBP
Retailer 18£357 GBP
Retailer 12£363 GBP
Retailer 6£399 GBP
Retailer 2£513 GBP
Retailer 11£518 GBP
Retailer 3£549 GBP
Retailer 5£554 GBP
Retailer 15£677 GBP
Retailer 13£841 GBP
Retailer 19£999 GBP
Queensmith£1,353 GBP

30 data points across 20 retailers

15 retailers£169 GBP to £841 GBP

Retailer 1
-
£122 GBP
$164 USD
Price last confirmed 32 days ago
Retailer 2
-
£150 GBP
$201 USD
View
Price last confirmed 36 days ago
Retailer 3
-
£156 GBP
$209 USD
View
Price last confirmed 33 days ago
Retailer 4
-
£158 GBP
$212 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
£169 GBP
$227 USD
View
A
Retailer 6
-
£305 GBP
HK$3,200 HKD
View
A
Retailer 7
-
£338 GBP
€432 EUR
View
A
Retailer 8
-
£357 GBP
$479 USD
View
Retailer 9
-
£508 GBP
$682 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
£513 GBP
A$1,060 AUD
View
Retailer 11
-
£554 GBP
A$1,144 AUD
View
Price last confirmed 33 days ago
B
Retailer 12
-
£677 GBP
$909 USD
View
B
Retailer 13
-
£841 GBP
View
Retailer 14
-
£999 GBP
$1,340 USD
View
Price last confirmed 30 days ago
Most Expensive
Queensmith
LG831658343 · Oct 2
£1,353 GBP
View
Price last confirmed 31 days ago
14 more retailers have this diamond
Prices start from £169 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
1.20ct Radiant
£169 GBP