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Cushion|Lab Grown|IGI

5.23ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG691557512

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG691557512

Diamond specifications and retailer prices

From £2,602 GBP
$3,486 USD
As of October 29, 2026
Save £4,819 GBP (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £10,454 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.23ct lab-grown cushion diamond

This 5.23ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG691557512 or 691557512. Listed at 14 retailers as of October 29, 2026, with a 185% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.23
Carat
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691557512
Dimensions12.47 × 9.47 × 5.86 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.47 mm9.47 mm5.23 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691557512
Side View
Table 51.0%Crown 35.3°Girdle: MED-STKPavilion 37.1°Culet: LargeDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,940 GBP|Low: £1,858 GBP|High: £7,421 GBP|Avg: £4,228 GBP|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9£2,129 GBP
Retailer 6£2,602 GBP
Retailer 11£2,664 GBP
Retailer 10£2,695 GBP
Retailer 3£2,814 GBP
Retailer 2£3,811 GBP
Retailer 1£3,940 GBP
Retailer 12£4,550 GBP
Retailer 5£6,044 GBP
Retailer 8£6,083 GBP
Retailer 7£6,406 GBP
Retailer 4£7,421 GBP

29 data points across 12 retailers

14 retailers£2,602 GBP to £7,421 GBP

Retailer 1
-
£2,129 GBP
$2,852 USD
Price last confirmed 11 days ago
B
Retailer 2
-
£2,602 GBP
$3,486 USD
View
Final sale: no returns
B
Retailer 3
-
£2,664 GBP
$3,570 USD
View
Retailer 4
-
£2,695 GBP
$3,611 USD
View
Price last confirmed 18 days ago
B
Retailer 5
-
£2,814 GBP
$3,770 USD
View
B
Retailer 6
-
£3,811 GBP
$5,106 USD
View
B
Retailer 7
-
£3,940 GBP
View
B
Retailer 8
-
£4,550 GBP
View
B
Retailer 9
-
£6,044 GBP
ZAR 130,820 ZAR
View
Retailer 10
-
£6,083 GBP
A$12,540 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£6,406 GBP
View
C
Retailer 12
-
£7,421 GBP
$9,943 USD
View
Most Expensive
Taylor and Hart
YEVHGDV · Oct 30
£10,454 GBP
$14,007 USD
View
Price under review
12 more retailers have this diamond
Prices start from £2,602 GBPSave up to £4,819 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
5.23ct Cushion
£2,602 GBP