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Radiant|Lab Grown|IGI

1.20ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG731587272

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

Certificate IGI LG731587272

Diamond specifications and retailer prices

From £130 GBP
As of November 2, 2026
Save £818 GBP (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £948 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG731587272 or 731587272. Listed at 15 retailers as of November 2, 2026, with prices from £130 to £948, a £818 spread on the same certified stone. Do Amore Diamonds lists it at £948. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731587272
Dimensions7.78 × 5.23 × 3.48 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm5.23 mm1.20 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731587272
Side View
Table 64.0%Crown 39.5°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.5%

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: £948 GBP|Low: £130 GBP|High: £1,039 GBP|Avg: £479 GBP
Do Amore Diamonds
Retailer 2
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Retailer 22
November 5, 2026
Retailer 19£130 GBP
Retailer 5£145 GBP
Retailer 4£151 GBP
Retailer 21£161 GBP
Retailer 10£204 GBP
Retailer 7£213 GBP
Retailer 16£237 GBP
Retailer 3£286 GBP
Retailer 20£307 GBP
Retailer 2£321 GBP
Retailer 8£359 GBP
Retailer 11£389 GBP
Retailer 17£419 GBP
Retailer 18£434 GBP
Retailer 9£507 GBP
Retailer 22£573 GBP
Retailer 6£701 GBP
Retailer 13£831 GBP
Retailer 14£921 GBP
Retailer 15£927 GBP
Do Amore Diamonds£948 GBP
Retailer 12£1,039 GBP

7 data points across 22 retailers

15 retailers£130 GBP to £948 GBP

A
Cheapest Retailer
-
£130 GBP
A
Retailer 2
-
£145 GBP
View
Final sale: no returns
A
Retailer 3
-
£151 GBP
View
A
Retailer 4
-
£161 GBP
View
B+
Retailer 5
-
£213 GBP
View
A
Retailer 6
-
£237 GBP
View
A
Retailer 7
-
£286 GBP
View
A
Retailer 8
-
£307 GBP
View
A
Retailer 9
-
£321 GBP
View
B+
Retailer 10
-
£419 GBP
View
B+
Retailer 11
-
£434 GBP
View
B+
Retailer 12
-
£573 GBP
View
B
Retailer 13
-
£701 GBP
View
B
Retailer 14
-
£831 GBP
View
Most Expensive
B
Do Amore Diamonds
34-DB223-20D · Nov 4
£948 GBP
$1,280 USD
View
14 more retailers have this diamond
Prices start from £130 GBPSave up to £818 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
£130 GBP