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Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

GD • D/VVS1 • IGI LG723566709

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG723566709

Diamond specifications and retailer prices

From £160 GBP
As of November 4, 2026
Save £708 GBP (82%) vs most expensive(unlock to see where)
15 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 standard cut grade and certified by IGI LG723566709 or 723566709. Listed at 15 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG723566709
Dimensions8.25 × 5.33 × 3.31 mm
L/W Ratio1.55
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.25 mm5.33 mm1.23 ctD / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG723566709
Side View
Table 63.0%Crown 36.2°Girdle: THN-STKPavilion 32.3°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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 4
Current: £201 GBP|Low: £160 GBP|High: £887 GBP|Avg: £463 GBP|-1.4%
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
Retailer 14
Reve Diamonds
November 4, 2026
Retailer 13£160 GBP
Retailer 2£178 GBP
Retailer 1£201 GBP
Retailer 5£239 GBP
Retailer 9£306 GBP
Retailer 7£320 GBP
Retailer 3£416 GBP
Retailer 8£433 GBP
Retailer 14£439 GBP
Retailer 6£577 GBP
Retailer 4£610 GBP
Retailer 12£699 GBP
Retailer 11£707 GBP
Retailer 10£830 GBP
Reve Diamonds£868 GBP

39 data points across 15 retailers

15 retailers£160 GBP to £868 GBP

A
Cheapest Retailer
-
£160 GBP
Final sale: no returns
Retailer 2
-
£178 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£201 GBP
View
B+
Retailer 4
-
£239 GBP
View
A
Retailer 5
-
£306 GBP
View
A
Retailer 6
-
£320 GBP
View
B+
Retailer 7
-
£416 GBP
View
B+
Retailer 8
-
£433 GBP
View
B+
Retailer 9
-
£439 GBP
View
B
Retailer 10
-
£577 GBP
View
B
Retailer 11
-
£610 GBP
View
B
Retailer 12
-
£699 GBP
View
Retailer 13
-
£707 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
£830 GBP
View
Most Expensive
B
Reve Diamonds
A910A9151 · Nov 4
£868 GBP
$1,172 USD
View
14 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