CaratHunter
Plans
Cushion|Lab Grown|IGI

1.29ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG696585276

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG696585276

Diamond specifications and retailer prices

From £179 GBP
As of November 6, 2026
Save £749 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,031 GBP at Brilliant Earth · As of October 19, 2026
View at Brilliant Earth

About this 1.29ct lab-grown cushion diamond

This 1.29ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG696585276 or 696585276. Listed at 15 retailers as of November 6, 2026, with a 419% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696585276
Dimensions6.38 × 6.31 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.38 mm6.31 mm1.29 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696585276
Side View
Table 62.0%Crown 35.5°Girdle: MediumPavilion 40°Culet: NoneDepth 66.4%

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 6
Current: £1,031 GBP|Low: £172 GBP|High: £1,061 GBP|Avg: £486 GBP|-2.8%
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
November 6, 2026
Retailer 11£179 GBP
Retailer 6£190 GBP
Retailer 8£264 GBP
Retailer 15£330 GBP
Retailer 2£337 GBP
Retailer 14£341 GBP
Retailer 10£365 GBP
Retailer 9£391 GBP
Retailer 7£431 GBP
Retailer 5£465 GBP
Retailer 4£542 GBP
Retailer 12£679 GBP
Retailer 3£894 GBP
Retailer 13£927 GBP
Brilliant Earth£1,031 GBP

40 data points across 15 retailers

15 retailers£179 GBP to £927 GBP

A
Cheapest Retailer
-
£179 GBP
Final sale: no returns
Retailer 2
-
£190 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
£264 GBP
View
A
Retailer 4
-
£330 GBP
View
A
Retailer 5
-
£337 GBP
View
A
Retailer 6
-
£341 GBP
View
A
Retailer 7
-
£365 GBP
View
A
Retailer 8
-
£391 GBP
View
B+
Retailer 9
-
£431 GBP
View
Retailer 10
-
£465 GBP
View
Price last confirmed 11 days ago
Retailer 11
-
£542 GBP
View
Price last confirmed 10 days ago
B
Retailer 12
-
£679 GBP
View
Retailer 13
-
£894 GBP
View
Price last confirmed 9 days ago
B
Retailer 14
-
£927 GBP
View
Most Expensive
Brilliant Earth
14982806A · Oct 19
£1,031 GBP
$1,380 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from £179 GBPSave up to £749 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 Cushion
£179 GBP