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Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG717597394

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG717597394

Diamond specifications and retailer prices

From £160 GBP
As of November 4, 2026
Save £708 GBP (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £868 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG717597394 or 717597394. Listed at 14 retailers as of November 4, 2026, with prices from £160 to £868, a £708 spread on the same certified stone. Reve Diamonds lists it at £868. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717597394
Dimensions7.55 × 5.17 × 3.55 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm5.17 mm1.23 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717597394
Side View
Table 59.0%Crown 37.8°Girdle: MED-THKPavilion 32.5°Culet: NoneDepth 68.7%

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: £827 GBP|Low: £160 GBP|High: £887 GBP|Avg: £484 GBP|-6.7%
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 5, 2026
Retailer 12£160 GBP
Retailer 6£201 GBP
Retailer 4£239 GBP
Retailer 9£306 GBP
Retailer 7£320 GBP
Retailer 2£416 GBP
Retailer 8£433 GBP
Retailer 13£439 GBP
Retailer 5£577 GBP
Retailer 3£610 GBP
Retailer 11£699 GBP
Retailer 10£707 GBP
Retailer 1£827 GBP
Reve Diamonds£868 GBP

42 data points across 14 retailers

14 retailers£160 GBP to £868 GBP

A
Cheapest Retailer
-
£160 GBP
Final sale: no returns
A
Retailer 2
-
£201 GBP
View
B+
Retailer 3
-
£239 GBP
View
A
Retailer 4
-
£306 GBP
View
A
Retailer 5
-
£320 GBP
View
B+
Retailer 6
-
£416 GBP
View
B+
Retailer 7
-
£433 GBP
View
B+
Retailer 8
-
£439 GBP
View
B+
Retailer 9
-
£577 GBP
View
B+
Retailer 10
-
£610 GBP
View
Retailer 11
-
£699 GBP
View
Price last confirmed 9 days ago
Retailer 12
-
£707 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
£827 GBP
View
Most Expensive
B
Reve Diamonds
2C7B3C728 · Nov 4
£868 GBP
$1,172 USD
View
13 more retailers have this diamond
Prices start from £160 GBPSave up to £708 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
1.23ct Cushion
£160 GBP