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Cushion|Lab Grown|IGI

1.25ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG777629819

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

Certificate IGI LG777629819

Diamond specifications and retailer prices

From £250 GBP
As of November 5, 2026
Save £650 GBP (72%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £900 GBP at Reve Diamonds · As of November 4, 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 LG777629819 or 777629819. Listed at 17 retailers as of November 4, 2026, with prices from £250 to £900, a £650 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG777629819
Dimensions6.02 × 6.02 × 3.82 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
6.02 mm6.02 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG777629819
Side View
Table 64.0%Crown 37.9°Girdle: STK-THKPavilion 34.9°Culet: NoneDepth 63.5%

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 5
Current: £343 GBP|Low: £170 GBP|High: £994 GBP|Avg: £520 GBP|+6.0%
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 6£250 GBP
Retailer 10£325 GBP
Retailer 1£343 GBP
Retailer 8£343 GBP
Retailer 12£457 GBP
Retailer 9£459 GBP
Retailer 2£542 GBP
Retailer 13£577 GBP
Retailer 4£612 GBP
Retailer 7£643 GBP
Retailer 11£881 GBP
Reve Diamonds£900 GBP

43 data points across 14 retailers

17 retailers£250 GBP to £900 GBP

Retailer 1
-
£188 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£250 GBP
View
B+
Retailer 3
-
£254 GBP
View
A
Retailer 4
-
£325 GBP
View
A
Retailer 5
-
£343 GBP
View
A
Retailer 6
-
£343 GBP
View
A
Retailer 7
-
£368 GBP
View
A
Retailer 8
-
£372 GBP
View
B+
Retailer 9
-
£457 GBP
View
B+
Retailer 10
-
£459 GBP
View
Retailer 11
-
£542 GBP
View
Price last confirmed 10 days ago
Retailer 12
-
£577 GBP
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£612 GBP
View
B
Retailer 14
-
£643 GBP
View
B
Retailer 15
-
£646 GBP
View
B
Retailer 16
-
£881 GBP
View
Most Expensive
B
Reve Diamonds
9B4E10F24 · Nov 4
£900 GBP
$1,205 USD
View
16 more retailers have this diamond
Prices start from £250 GBPSave up to £650 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
£250 GBP