Cushion|Lab Grown|IGI

6.12ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG839636472

Certificate IGI LG839636472

Diamond specifications and retailer prices

From £1,639 GBP
$2,196 USD
As of October 30, 2026
Save £2,673 GBP (62%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,933 GBP at Brilliant Earth · As of September 29, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839636472 or 839636472. Listed at 8 retailers as of October 30, 2026, with a 163% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.12
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG839636472
Dimensions12.78 × 9.56 × 6.37 mm
L/W Ratio1.34
Top View
12.78 mm9.56 mm6.12 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839636472
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 66.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,070 GBP|Low: £1,523 GBP|High: £4,312 GBP|Avg: £2,320 GBP|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8£1,523 GBP
Retailer 5£1,639 GBP
Retailer 7£1,823 GBP
Retailer 3£2,055 GBP
Retailer 1£2,070 GBP
Retailer 6£3,356 GBP
Retailer 4£3,611 GBP
Retailer 2£4,312 GBP

9 data points across 8 retailers

8 retailers£1,639 GBP to £4,312 GBP

A
Cheapest Retailer
-
£1,639 GBP
$2,196 USD
A
Retailer 2
-
£1,823 GBP
$2,443 USD
View
A
Retailer 3
-
£2,055 GBP
$2,753 USD
View
A
Retailer 4
-
£2,070 GBP
€2,642 EUR
View
B+
Retailer 5
-
£3,356 GBP
$4,497 USD
View
B+
Retailer 6
-
£3,611 GBP
$4,838 USD
View
B
Retailer 7
-
£4,312 GBP
A$8,888 AUD
View
Most Expensive
Brilliant Earth
21602057A · Sep 29
£5,933 GBP
$7,950 USD
View
Price last confirmed 32 days ago
7 more retailers have this diamond
Prices start from £1,639 GBPSave up to £2,673 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
6.12ct Cushion
£1,639 GBP