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Cushion|Lab Grown|IGI

1.35ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG790694990

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

Certificate IGI LG790694990

Diamond specifications and retailer prices

From £162 GBP
$217 USD
As of October 31, 2026
Save £716 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £878 GBP at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.35ct lab-grown cushion diamond

This 1.35ct 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 LG790694990 or 790694990. Listed at 11 retailers as of October 28, 2026, with prices from £162 to £878, a £716 spread on the same certified stone. Reve Diamonds lists it at £878. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790694990
Dimensions6.33 × 6.26 × 4.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.33 mm6.26 mm1.35 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790694990
Side View
Table 66.0%Crown 34.4°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 65.0%

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: Oct 31
Current: £329 GBP|Low: £162 GBP|High: £937 GBP|Avg: £463 GBP|-10.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 6£162 GBP
Retailer 3£242 GBP
Retailer 4£309 GBP
Retailer 9£315 GBP
Retailer 1£329 GBP
Retailer 2£367 GBP
Retailer 5£416 GBP
Retailer 7£440 GBP
Retailer 10£619 GBP
Retailer 8£844 GBP
Reve Diamonds£878 GBP

26 data points across 11 retailers

11 retailers£162 GBP to £878 GBP

A
Cheapest Retailer
-
£162 GBP
$217 USD
Final sale: no returns
A
Retailer 2
-
£242 GBP
View
A
Retailer 3
-
£309 GBP
ZAR 6,696 ZAR
View
A
Retailer 4
-
£315 GBP
$422 USD
View
A
Retailer 5
-
£329 GBP
View
A
Retailer 6
-
£367 GBP
$492 USD
View
A
Retailer 7
-
£416 GBP
$557 USD
View
A
Retailer 8
-
£440 GBP
A$906 AUD
View
B+
Retailer 9
-
£619 GBP
$830 USD
View
B
Retailer 10
-
£844 GBP
View
Most Expensive
B
Reve Diamonds
FF52D2857 · Oct 28
£878 GBP
$1,177 USD
View
10 more retailers have this diamond
Prices start from £162 GBPSave up to £716 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
1.35ct Cushion
£162 GBP