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Cushion|Lab Grown|IGI

1.25ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG775627429

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

Certificate IGI LG775627429

Diamond specifications and retailer prices

From £170 GBP
As of November 6, 2026
Save £730 GBP (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £900 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.25ct lab-grown cushion diamond

This 1.25ct 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 LG775627429 or 775627429. Listed at 19 retailers as of November 6, 2026, with prices from £170 to £900, a £730 spread on the same certified stone. Reve Diamonds lists it at £900. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775627429
Dimensions6.08 × 6.08 × 3.92 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.08 mm6.08 mm1.25 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775627429
Side View
Table 64.0%Crown 38.5°Girdle: THK-ETKPavilion 32.1°Culet: NoneDepth 64.5%

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 6
Current: £314 GBP|Low: £170 GBP|High: £994 GBP|Avg: £513 GBP|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 6, 2026
Retailer 5£170 GBP
Retailer 3£188 GBP
Retailer 7£250 GBP
Retailer 1£314 GBP
Retailer 6£319 GBP
Retailer 8£343 GBP
Retailer 13£457 GBP
Retailer 11£459 GBP
Retailer 2£542 GBP
Retailer 12£545 GBP
Retailer 9£587 GBP
Retailer 4£612 GBP
Retailer 10£879 GBP
Reve Diamonds£900 GBP

39 data points across 14 retailers

19 retailers£170 GBP to £900 GBP

A
Cheapest Retailer
-
£170 GBP
Final sale: no returns
Retailer 2
-
£188 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
£250 GBP
View
B+
Retailer 4
-
£254 GBP
View
A
Retailer 5
-
£314 GBP
View
A
Retailer 6
-
£319 GBP
View
A
Retailer 7
-
£343 GBP
View
A
Retailer 8
-
£368 GBP
View
A
Retailer 9
-
£372 GBP
View
B+
Retailer 10
-
£457 GBP
View
B+
Retailer 11
-
£459 GBP
View
Retailer 12
-
£542 GBP
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£545 GBP
View
B+
Retailer 14
-
£545 GBP
View
B+
Retailer 15
-
£587 GBP
View
B+
Retailer 16
-
£612 GBP
View
B
Retailer 17
-
£646 GBP
View
B
Retailer 18
-
£879 GBP
View
Most Expensive
B
Reve Diamonds
6A63CB123 · Nov 6
£900 GBP
$1,205 USD
View
18 more retailers have this diamond
Prices start from £170 GBPSave up to £730 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
1.25ct Cushion
£170 GBP