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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

VG • D/VVS1 • IGI LG790695102

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

Certificate IGI LG790695102

Diamond specifications and retailer prices

From £178 GBP
As of November 4, 2026
Save £829 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,007 GBP at Reve Diamonds · As of November 4, 2026
View at Reve 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 very-good cut grade and certified by IGI LG790695102 or 790695102. Listed at 18 retailers as of November 4, 2026, with prices from £178 to £1,007, a £829 spread on the same certified stone. Reve Diamonds lists it at £1,007. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790695102
Dimensions7.66 × 5.31 × 3.61 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.66 mm5.31 mm1.28 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790695102
Side View
Table 65.0%Crown 41.5°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 68.0%

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: £207 GBP|Low: £178 GBP|High: £1,034 GBP|Avg: £485 GBP|-8.2%
Retailer 1
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Reve Diamonds
November 6, 2026
Retailer 16£178 GBP
Retailer 12£200 GBP
Retailer 1£207 GBP
Retailer 13£221 GBP
Retailer 9£232 GBP
Retailer 10£250 GBP
Retailer 4£349 GBP
Retailer 2£388 GBP
Retailer 7£388 GBP
Retailer 8£403 GBP
Retailer 14£415 GBP
Retailer 11£487 GBP
Retailer 6£551 GBP
Retailer 3£710 GBP
Retailer 17£711 GBP
Retailer 5£781 GBP
Retailer 15£883 GBP
Reve Diamonds£1,007 GBP

22 data points across 18 retailers

18 retailers£178 GBP to £1,007 GBP

A
Cheapest Retailer
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£178 GBP
A
Retailer 2
-
£200 GBP
View
Final sale: no returns
A
Retailer 3
-
£207 GBP
View
A
Retailer 4
-
£221 GBP
View
Retailer 5
-
£232 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£250 GBP
View
A
Retailer 7
-
£349 GBP
View
A
Retailer 8
-
£388 GBP
View
A
Retailer 9
-
£388 GBP
View
Retailer 10
-
£403 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£415 GBP
View
B+
Retailer 12
-
£487 GBP
View
B+
Retailer 13
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£551 GBP
View
B
Retailer 14
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£710 GBP
View
B
Retailer 15
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£711 GBP
View
B
Retailer 16
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£781 GBP
View
B
Retailer 17
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£883 GBP
View
Most Expensive
B
Reve Diamonds
97DC9128F · Nov 4
£1,007 GBP
$1,355 USD
View
17 more retailers have this diamond
Prices start from £178 GBPSave up to £829 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
£178 GBP