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Radiant|Lab Grown|IGI

1.29ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG735529384

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

Certificate IGI LG735529384

Diamond specifications and retailer prices

From £264 GBP
As of November 2, 2026
Save £335 GBP (56%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £599 GBP at Riddles Jewelry · As of November 2, 2026
View at Riddles Jewelry

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG735529384 or 735529384. Listed at 4 retailers as of November 2, 2026, with prices from £264 to £599, a £335 spread on the same certified stone. Riddles Jewelry lists it at £599. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735529384
Dimensions7.49 × 5.65 × 3.74 mm
L/W Ratio1.33
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.49 mm5.65 mm1.29 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG735529384
Side View
Table 66.0%Crown 36.8°Girdle: Slightly ThickPavilion 36.4°Culet: NoneDepth 66.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £264 GBP|Low: £258 GBP|High: £646 GBP|Avg: £463 GBP|+2.3%
Retailer 1
Retailer 2
Riddles Jewelry
October 31, 2026
Retailer 1£264 GBP
Retailer 2£468 GBP
Riddles Jewelry£599 GBP

11 data points across 3 retailers

4 retailers£264 GBP to £599 GBP

A
Cheapest Retailer
-
£264 GBP
Retailer 2
-
£446 GBP
View
Price last confirmed 15 days ago
Retailer 3
-
£468 GBP
View
Price last confirmed 15 days ago
Most Expensive
B
Riddles Jewelry
1879461390 · Nov 2
£599 GBP
$806 USD
View
3 more retailers have this diamond
Prices start from £264 GBPSave up to £335 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
1.29ct Radiant
£264 GBP