CaratHunter
Plans
Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG786697192

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG786697192

Diamond specifications and retailer prices

From £162 GBP
$217 USD
As of November 1, 2026
Save £718 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £879 GBP at Brilliant Earth · As of November 2, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG786697192 or 786697192. Listed at 17 retailers as of November 1, 2026, with prices from £162 to £879, a £718 spread on the same certified stone. Brilliant Earth lists it at £879. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786697192
Dimensions7.26 × 6.22 × 4.04 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.26 mm6.22 mm1.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786697192
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 34°Culet: NoneDepth 65.0%

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: Nov 1
Current: £879 GBP|Low: £162 GBP|High: £1,013 GBP|Avg: £486 GBP|-13.2%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 8£162 GBP
Retailer 9£186 GBP
Retailer 2£210 GBP
Retailer 4£242 GBP
Retailer 15£300 GBP
Retailer 13£310 GBP
Retailer 11£328 GBP
Retailer 6£352 GBP
Retailer 10£418 GBP
Retailer 17£427 GBP
Retailer 16£462 GBP
Retailer 7£618 GBP
Retailer 3£666 GBP
Retailer 12£667 GBP
Retailer 14£840 GBP
Retailer 5£876 GBP
Brilliant Earth£879 GBP

27 data points across 17 retailers

17 retailers£162 GBP to £879 GBP

A
Cheapest Retailer
-
£162 GBP
$217 USD
Final sale: no returns
Retailer 2
-
£186 GBP
$250 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£210 GBP
View
B+
Retailer 4
-
£242 GBP
$325 USD
View
A
Retailer 5
-
£300 GBP
€384 EUR
View
A
Retailer 6
-
£310 GBP
ZAR 6,724 ZAR
View
A
Retailer 7
-
£328 GBP
View
A
Retailer 8
-
£352 GBP
$472 USD
View
A
Retailer 9
-
£418 GBP
A$864 AUD
View
A
Retailer 10
-
£427 GBP
$573 USD
View
B+
Retailer 11
-
£462 GBP
$620 USD
View
B+
Retailer 12
-
£618 GBP
$829 USD
View
B
Retailer 13
-
£666 GBP
$894 USD
View
B+
Retailer 14
-
£667 GBP
$895 USD
View
B
Retailer 15
-
£840 GBP
View
B
Retailer 16
-
£876 GBP
$1,176 USD
View
Most Expensive
B
Brilliant Earth
18637556A · Nov 2
£879 GBP
$1,180 USD
View
16 more retailers have this diamond
Prices start from £162 GBPSave up to £718 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
£162 GBP