CaratHunter
Plans
Cushion|Lab Grown|IGI

1.51ct F VS2 Cushion Lab Grown Diamond

VG • F/VS2 • IGI LG825661527

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG825661527

Diamond specifications and retailer prices

From £224 GBP
As of November 4, 2026
Save £886 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,370 GBP at Flawless Fine Jewelry · As of October 21, 2026
View at Flawless Fine Jewelry

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 F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG825661527 or 825661527. Listed at 15 retailers as of November 4, 2026, with a 395% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661527
Dimensions7.79 × 6.45 × 3.98 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm6.45 mm1.51 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661527
Side View
Table 60.0%Crown 34.9°Girdle: STK-THKPavilion 40.9°Culet: LargeDepth 61.7%

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 4
Current: £1,370 GBP|Low: £224 GBP|High: £1,389 GBP|Avg: £675 GBP
Flawless Fine Jewelry
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
November 5, 2026
Retailer 4£224 GBP
Retailer 15£260 GBP
Retailer 11£278 GBP
Retailer 12£278 GBP
Retailer 3£336 GBP
Retailer 14£384 GBP
Retailer 10£394 GBP
Retailer 9£435 GBP
Retailer 2£489 GBP
Retailer 5£854 GBP
Retailer 13£893 GBP
Retailer 6£1,068 GBP
Retailer 8£1,110 GBP
Retailer 7£1,157 GBP
Flawless Fine Jewelry£1,370 GBP

39 data points across 15 retailers

15 retailers£224 GBP to £1,110 GBP

A
Cheapest Retailer
-
£224 GBP
A
Retailer 2
-
£260 GBP
View
Retailer 3
-
£278 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
-
£278 GBP
View
B+
Retailer 5
-
£336 GBP
View
A
Retailer 6
-
£384 GBP
View
A
Retailer 7
-
£394 GBP
View
A
Retailer 8
-
£435 GBP
View
B+
Retailer 9
-
£489 GBP
View
B
Retailer 10
-
£854 GBP
View
B
Retailer 11
-
£893 GBP
View
B
Retailer 12
-
£1,068 GBP
View
B
Retailer 13
-
£1,110 GBP
View
Retailer 14
-
£1,157 GBP
View
Price last confirmed 18 days ago
Most Expensive
Flawless Fine Jewelry
9731FE921 · Oct 21
£1,370 GBP
View
Price last confirmed 14 days ago
14 more retailers have this diamond
Prices start from £224 GBPSave up to £886 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
£224 GBP