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Cushion|Lab Grown|IGI

6.12ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG754595528

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG754595528

Diamond specifications and retailer prices

From £12,199 GBP
$16,345 USD
As of November 1, 2026
Save £27,996 GBP (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £40,194 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 6.12ct lab-grown cushion diamond

This 6.12ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG754595528 or 754595528. Listed at 18 retailers as of October 27, 2026, with prices from £12,199 to £40,194, a £27,996 spread on the same certified stone. Wholesale Diamonds Direct lists it at £40,194. 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

6.12
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595528
Dimensions10.99 × 10.61 × 6.80 mm
L/W Ratio1.04
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
10.99 mm10.61 mm6.12 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595528
Side View
Table 62.0%Crown 36.8°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 64.1%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £27,010 GBP|Low: £9,175 GBP|High: £53,675 GBP|Avg: £23,963 GBP|-0.2%
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
Wholesale Diamonds Direct
November 1, 2026
Retailer 12£10,117 GBP
Retailer 4£12,199 GBP
Retailer 11£13,900 GBP
Retailer 8£15,761 GBP
Retailer 5£20,621 GBP
Retailer 6£22,614 GBP
Retailer 13£23,091 GBP
Retailer 7£23,949 GBP
Retailer 9£24,447 GBP
Retailer 2£26,014 GBP
Retailer 1£27,010 GBP
Retailer 10£27,859 GBP
Wholesale Diamonds Direct£40,194 GBP
Retailer 3£53,675 GBP

37 data points across 14 retailers

18 retailers£12,199 GBP to £40,194 GBP

Retailer 1
-
£10,117 GBP
$13,555 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
£12,199 GBP
$16,345 USD
View
B+
Retailer 3
-
£13,088 GBP
$17,536 USD
View
B+
Retailer 4
-
£13,900 GBP
$18,624 USD
View
Final sale: no returns
B+
Retailer 5
-
£15,761 GBP
View
B+
Retailer 6
-
£17,514 GBP
$23,467 USD
View
B
Retailer 7
-
£20,621 GBP
View
B
Retailer 8
-
£22,614 GBP
View
B
Retailer 9
-
£23,091 GBP
$30,940 USD
View
B
Retailer 10
-
£23,949 GBP
A$49,368 AUD
View
B
Retailer 11
-
£24,447 GBP
€31,196 EUR
View
B
Retailer 12
-
£26,014 GBP
$34,856 USD
View
B
Retailer 13
-
£27,010 GBP
A$55,677 AUD
View
B
Retailer 14
-
£27,859 GBP
ZAR 603,036 ZAR
View
B
Retailer 15
-
£35,510 GBP
$47,580 USD
View
B
Retailer 16
-
£40,142 GBP
$53,786 USD
View
Most Expensive
B
Wholesale Diamonds Direct
228609798 · Oct 27
£40,194 GBP
$53,856 USD
View
16 more retailers have this diamond
Prices start from £12,199 GBPSave up to £27,996 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+
6.12ct Cushion
£12,199 GBP