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Cushion|Lab Grown|IGI

6.23ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG762545576

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG762545576

Diamond specifications and retailer prices

From £11,278 GBP
$15,111 USD
As of October 30, 2026
Save £29,639 GBP (72%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £40,917 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 6.23ct lab-grown cushion diamond

This 6.23ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG762545576 or 762545576. Listed at 12 retailers as of October 27, 2026, with prices from £11,278 to £40,917, a £29,639 spread on the same certified stone. Wholesale Diamonds Direct lists it at £40,917. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.23
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545576
Dimensions12.17 × 10.04 × 6.57 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.17 mm10.04 mm6.23 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545576
Side View
Table 62.0%Crown 35.4°Girdle: MediumPavilion 35.7°Culet: NoneDepth 65.4%

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 30
Current: £24,885 GBP|Low: £9,766 GBP|High: £40,917 GBP|Avg: £19,698 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 31, 2026
Retailer 6£9,766 GBP
Retailer 10£11,278 GBP
Retailer 7£13,134 GBP
Retailer 2£13,349 GBP
Retailer 3£16,178 GBP
Retailer 9£16,353 GBP
Retailer 4£19,509 GBP
Retailer 5£23,138 GBP
Retailer 8£24,680 GBP
Retailer 1£24,885 GBP
Wholesale Diamonds Direct£40,917 GBP

29 data points across 11 retailers

12 retailers£11,278 GBP to £40,917 GBP

Retailer 1
-
£9,766 GBP
$13,085 USD
Price last confirmed 13 days ago
A
Retailer 2
-
£11,278 GBP
$15,111 USD
View
A
Retailer 3
-
£13,134 GBP
$17,598 USD
View
A
Retailer 4
-
£13,349 GBP
$17,886 USD
View
B+
Retailer 5
-
£16,178 GBP
View
B+
Retailer 6
-
£16,353 GBP
$21,911 USD
View
B+
Retailer 7
-
£19,509 GBP
$26,140 USD
View
B+
Retailer 8
-
£23,138 GBP
View
Retailer 9
-
£24,680 GBP
A$50,875 AUD
View
Price last confirmed 23 days ago
B+
Retailer 10
-
£24,885 GBP
€31,756 EUR
View
B
Retailer 11
-
£35,979 GBP
$48,208 USD
View
Most Expensive
B
Wholesale Diamonds Direct
232221129 · Oct 27
£40,917 GBP
$54,824 USD
View
11 more retailers have this diamond
Prices start from £11,278 GBPSave up to £29,639 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
6.23ct Cushion
£11,278 GBP