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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

EX • D/VVS1 • IGI LG729520612

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

Certificate IGI LG729520612

Diamond specifications and retailer prices

From £217 GBP
As of November 4, 2026
Save £1,893 GBP (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,110 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG729520612 or 729520612. Listed at 24 retailers as of November 4, 2026, with prices from £217 to £2,110, a £1,893 spread on the same certified stone. Do Amore Diamonds lists it at £2,110. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729520612
Dimensions5.30 × 5.30 × 3.34 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.30 mm5.30 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729520612
Side View
Table 62.0%Crown 48.6°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 63.0%

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 4
Current: £336 GBP|Low: £208 GBP|High: £1,201 GBP|Avg: £597 GBP|-1.7%
Retailer 1
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 3£217 GBP
Retailer 4£268 GBP
Retailer 1£336 GBP
Retailer 2£386 GBP
Retailer 9£511 GBP
Retailer 11£520 GBP
Retailer 6£524 GBP
Retailer 8£728 GBP
Retailer 10£781 GBP
Retailer 12£825 GBP
Retailer 13£825 GBP
Retailer 5£953 GBP
Retailer 7£1,185 GBP

38 data points across 13 retailers

24 retailers£217 GBP to £2,110 GBP

A
Cheapest Retailer
-
£217 GBP
A
Retailer 2
-
£242 GBP
View
Final sale: no returns
A
Retailer 3
-
£251 GBP
View
A
Retailer 4
-
£268 GBP
View
Retailer 5
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£268 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£336 GBP
View
A
Retailer 7
-
£337 GBP
View
A
Retailer 8
-
£359 GBP
View
A
Retailer 9
-
£386 GBP
View
A
Retailer 10
-
£386 GBP
View
B+
Retailer 11
-
£511 GBP
View
B+
Retailer 12
-
£520 GBP
View
B+
Retailer 13
-
£524 GBP
View
B+
Retailer 14
-
£728 GBP
View
Retailer 15
-
£781 GBP
View
Price last confirmed 8 days ago
Retailer 16
-
£825 GBP
View
Price last confirmed 19 days ago
B
Retailer 17
-
£825 GBP
View
B
Retailer 18
-
£953 GBP
View
B
Retailer 19
-
£1,073 GBP
View
B
Retailer 20
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£1,100 GBP
View
B
Retailer 21
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£1,155 GBP
View
B
Retailer 22
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£1,185 GBP
View
B
Retailer 23
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£1,924 GBP
View
Most Expensive
B
Do Amore Diamonds
23-729520612 · Nov 4
£2,110 GBP
$2,840 USD
View
23 more retailers have this diamond
Prices start from £217 GBPSave up to £1,893 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
£217 GBP