Radiant|Lab Grown|IGI

1.29ct H VS1 Radiant Lab Grown Diamond

EX • H/VS1 • IGI LG610321737

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

Certificate IGI LG610321737

Diamond specifications and retailer prices

From £568 GBP
As of November 5, 2026
2 retailers carry this diamond
Most expensive: £568 GBP at Diamond Quarter
View at Diamond Quarter

About this 1.29ct lab-grown radiant diamond

This 1.29ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG610321737 or 610321737. Listed at 2 retailers as of November 5, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG610321737
Dimensions7.85 × 5.33 × 3.49 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.85 mm5.33 mm1.29 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG610321737
Side View
Table 64.0%Crown 39.5°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 65.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £235 GBP|Low: £85 GBP|High: £778 GBP|Avg: £373 GBP|-11.0%
Retailer 1
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Retailer 5
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Retailer 13
August 21, 2026
Retailer 12£89 GBP
Retailer 8£218 GBP
Retailer 9£234 GBP
Retailer 1£235 GBP
Retailer 5£267 GBP
Retailer 6£339 GBP
Retailer 3£356 GBP
Retailer 10£363 GBP
Retailer 7£393 GBP
Retailer 13£426 GBP
Retailer 4£491 GBP
Retailer 11£609 GBP
Retailer 2£773 GBP

51 data points across 13 retailers

2 retailers

Retailer 1
-
£393 GBP
Price last confirmed 77 days ago
Most Expensive
B
Diamond Quarter
1.29VS1HLG3733A4N · Nov 5
£568 GBP
View
1 more retailer has this diamond

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.

B
1.29ct Radiant
£568 GBP