CaratHunter
Plans
Radiant|Lab Grown|IGI

1.29ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG720547697

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

Certificate IGI LG720547697

Diamond specifications and retailer prices

From £135 GBP
As of November 4, 2026
Save £771 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £906 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 LG720547697 or 720547697. Listed at 18 retailers as of November 4, 2026, with prices from £135 to £906, a £771 spread on the same certified stone. Brilliant Earth lists it at £906. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720547697
Dimensions7.70 × 5.46 × 3.56 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.70 mm5.46 mm1.29 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720547697
Side View
Table 67.0%Crown 45.2°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £906 GBP|Low: £129 GBP|High: £906 GBP|Avg: £401 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 15£135 GBP
Retailer 14£157 GBP
Retailer 3£168 GBP
Retailer 4£168 GBP
Retailer 13£282 GBP
Retailer 11£289 GBP
Retailer 7£296 GBP
Retailer 2£299 GBP
Retailer 10£408 GBP
Retailer 6£409 GBP
Retailer 8£461 GBP
Retailer 16£539 GBP
Retailer 9£569 GBP
Retailer 5£579 GBP
Retailer 12£783 GBP
Brilliant Earth£906 GBP

46 data points across 16 retailers

18 retailers£135 GBP to £906 GBP

A
Cheapest Retailer
-
£135 GBP
A
Retailer 2
-
£157 GBP
View
Retailer 3
-
£168 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
-
£168 GBP
View
A
Retailer 5
-
£282 GBP
View
A
Retailer 6
-
£289 GBP
View
A
Retailer 7
-
£296 GBP
View
A
Retailer 8
-
£299 GBP
View
B+
Retailer 9
-
£360 GBP
View
B+
Retailer 10
-
£408 GBP
View
B+
Retailer 11
-
£409 GBP
View
B+
Retailer 12
-
£429 GBP
View
Retailer 13
-
£461 GBP
View
Price last confirmed 17 days ago
B+
Retailer 14
-
£539 GBP
View
B+
Retailer 15
-
£569 GBP
View
B
Retailer 16
-
£579 GBP
View
B
Retailer 17
-
£783 GBP
View
Most Expensive
B
Brilliant Earth
18190443A · Nov 4
£906 GBP
$1,220 USD
View
17 more retailers have this diamond
Prices start from £135 GBPSave up to £771 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
£135 GBP