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Cushion|Lab Grown|IGI

1.23ct F VVS2 Cushion Lab Grown Diamond

VG • F/VVS2 • IGI LG633442273

Certificate IGI LG633442273

Diamond specifications and retailer prices

From £561 GBP
$753 USD
As of October 31, 2026
Save £229 GBP (29%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £790 GBP at Kay Jewelers · As of November 2, 2026
View at Kay Jewelers

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG633442273 or 633442273. Listed at 4 retailers as of October 31, 2026, with prices from £561 to £790, a £229 spread on the same certified stone. Kay Jewelers lists it at £790. 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
F
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG633442273
Dimensions7.28 × 6.09 × 3.87 mm
L/W Ratio1.20
Top View
7.28 mm6.09 mm1.23 ctF / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG633442273
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £790 GBP|Low: £561 GBP|High: £976 GBP|Avg: £790 GBP|-19.1%
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2£561 GBP
Retailer 4£656 GBP
Kay Jewelers£790 GBP
Retailer 3£790 GBP

8 data points across 4 retailers

4 retailers£561 GBP to £790 GBP

B+
Cheapest Retailer
-
£561 GBP
$753 USD
B
Retailer 2
-
£656 GBP
$880 USD
View
B
Retailer 3
-
£790 GBP
$1,060 USD
View
Most Expensive
B
Kay Jewelers
251191210 · Nov 2
£790 GBP
$1,060 USD
View
3 more retailers have this diamond
Prices start from £561 GBPSave up to £229 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.

B+
1.23ct Cushion
£561 GBP