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Cushion|Lab Grown|IGI

1.51ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG627460466

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG627460466

Diamond specifications and retailer prices

From £195 GBP
$261 USD
As of October 30, 2026
Save £999 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,194 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG627460466 or 627460466. Listed at 19 retailers as of October 30, 2026, with prices from £195 to £1,194, a £999 spread on the same certified stone. Brilliant Earth lists it at £1,194. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627460466
Dimensions7.36 × 5.82 × 7.36 mm
L/W Ratio1.26
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
7.36 mm5.82 mm1.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627460466
Side View
Table 61.0%Crown 35°Girdle: MED-VTKPavilion 33.6°Culet: NoneDepth 67.5%

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: £1,194 GBP|Low: £194 GBP|High: £1,605 GBP|Avg: £544 GBP|-25.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 6£195 GBP
Retailer 3£216 GBP
Retailer 2£306 GBP
Retailer 8£349 GBP
Retailer 10£371 GBP
Retailer 5£404 GBP
Retailer 7£407 GBP
Retailer 11£503 GBP
Retailer 4£719 GBP
Retailer 9£747 GBP
Retailer 13£842 GBP
Retailer 12£869 GBP
Brilliant Earth£1,194 GBP

42 data points across 13 retailers

19 retailers£195 GBP to £1,194 GBP

A
Cheapest Retailer
-
£195 GBP
$261 USD
Final sale: no returns
A
Retailer 2
-
£216 GBP
$289 USD
View
A
Retailer 3
-
£239 GBP
HK$2,500 HKD
View
B+
Retailer 4
-
£306 GBP
$410 USD
View
A
Retailer 5
-
£349 GBP
€445 EUR
View
A
Retailer 6
-
£371 GBP
ZAR 8,027 ZAR
View
A
Retailer 7
-
£390 GBP
$523 USD
View
A
Retailer 8
-
£404 GBP
$541 USD
View
A
Retailer 9
-
£407 GBP
View
B+
Retailer 10
-
£503 GBP
A$1,037 AUD
View
B+
Retailer 11
-
£699 GBP
SGD 1,265 SGD
View
B+
Retailer 12
-
£719 GBP
$963 USD
View
B+
Retailer 13
-
£733 GBP
$982 USD
View
B+
Retailer 14
-
£747 GBP
A$1,540 AUD
View
B
Retailer 15
-
£842 GBP
View
B
Retailer 16
-
£869 GBP
View
B
Retailer 17
-
£878 GBP
$1,177 USD
View
B
Retailer 18
-
£970 GBP
$1,300 USD
View
Most Expensive
B
Brilliant Earth
9588502A · Oct 30
£1,194 GBP
$1,600 USD
View
18 more retailers have this diamond
Prices start from £195 GBPSave up to £999 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
1.51ct Cushion
£195 GBP