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Radiant|Lab Grown|IGI

1.28ct D VS2 Radiant Lab Grown Diamond

ID • D/VS2 • IGI LG639439366

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

Certificate IGI LG639439366

Diamond specifications and retailer prices

From £153 GBP
As of November 4, 2026
Save £1,314 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,467 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG639439366 or 639439366. Listed at 16 retailers as of November 4, 2026, with prices from £153 to £1,467, a £1,314 spread on the same certified stone. Do Amore Diamonds lists it at £1,467. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639439366
Dimensions7.83 × 5.32 × 3.62 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.83 mm5.32 mm1.28 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639439366
Side View
Table 63.0%Crown 35.9°Girdle: MediumPavilion 35.1°Culet: NoneDepth 68.0%

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: Nov 4
Current: £249 GBP|Low: £147 GBP|High: £847 GBP|Avg: £408 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 10£153 GBP
Retailer 3£177 GBP
Retailer 4£189 GBP
Retailer 11£189 GBP
Retailer 1£249 GBP
Retailer 2£327 GBP
Retailer 6£386 GBP
Retailer 5£415 GBP
Retailer 8£610 GBP
Retailer 12£671 GBP
Retailer 9£813 GBP
Retailer 7£841 GBP

43 data points across 12 retailers

16 retailers£153 GBP to £1,467 GBP

A
Cheapest Retailer
-
£153 GBP
A
Retailer 2
-
£177 GBP
View
Retailer 3
-
£189 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£189 GBP
View
A
Retailer 5
-
£249 GBP
View
A
Retailer 6
-
£287 GBP
View
A
Retailer 7
-
£327 GBP
View
B+
Retailer 8
-
£386 GBP
View
B+
Retailer 9
-
£415 GBP
View
B
Retailer 10
-
£561 GBP
View
B
Retailer 11
-
£610 GBP
View
B
Retailer 12
-
£671 GBP
View
Retailer 13
-
£799 GBP
View
Price last confirmed 17 days ago
B
Retailer 14
-
£813 GBP
View
B
Retailer 15
-
£841 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8748EB599 · Nov 4
£1,467 GBP
$1,980 USD
View
15 more retailers have this diamond
Prices start from £153 GBPSave up to £1,314 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
1.28ct Radiant
£153 GBP