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Cushion|Lab Grown|IGI

1.25ct D VVS2 Cushion Lab Grown Diamond

VG • D/VVS2 • IGI LG788624407

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG788624407

Diamond specifications and retailer prices

From £274 GBP
$368 USD
As of November 1, 2026
Save £1,325 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,599 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.25ct lab-grown cushion diamond

This 1.25ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG788624407 or 788624407. Listed at 18 retailers as of October 27, 2026, with prices from £274 to £1,599, a £1,325 spread on the same certified stone. Queensmith lists it at £1,599. 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

1.25
Carat
D
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788624407
Dimensions6.94 × 6.27 × 3.69 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeLarge
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
6.94 mm6.27 mm1.25 ctD / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788624407
Side View
Table 57.0%Crown 32.6°Girdle: STK-THKPavilion 40.7°Culet: LargeDepth 58.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £608 GBP|Low: £263 GBP|High: £1,343 GBP|Avg: £687 GBP|+1.2%
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
Retailer 14
November 2, 2026
Retailer 11£274 GBP
Retailer 5£307 GBP
Retailer 4£317 GBP
Retailer 2£340 GBP
Retailer 13£340 GBP
Retailer 9£451 GBP
Retailer 12£456 GBP
Retailer 1£608 GBP
Retailer 8£825 GBP
Retailer 10£996 GBP
Retailer 3£1,084 GBP
Retailer 14£1,092 GBP
Retailer 6£1,317 GBP
Retailer 7£1,328 GBP

44 data points across 14 retailers

18 retailers£274 GBP to £1,599 GBP

A
Cheapest Retailer
-
£274 GBP
$368 USD
A
Retailer 2
-
£307 GBP
$412 USD
View
Final sale: no returns
A
Retailer 3
-
£317 GBP
$426 USD
View
Retailer 4
-
£340 GBP
$456 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£340 GBP
$456 USD
View
B+
Retailer 6
-
£440 GBP
$590 USD
View
B+
Retailer 7
-
£451 GBP
$605 USD
View
B+
Retailer 8
-
£456 GBP
$612 USD
View
B+
Retailer 9
-
£608 GBP
View
B
Retailer 10
-
£825 GBP
A$1,703 AUD
View
B
Retailer 11
-
£996 GBP
$1,337 USD
View
B
Retailer 12
-
£1,084 GBP
SGD 1,965 SGD
View
B
Retailer 13
-
£1,092 GBP
$1,466 USD
View
B
Retailer 14
-
£1,122 GBP
$1,505 USD
View
B
Retailer 15
-
£1,288 GBP
$1,729 USD
View
B
Retailer 16
-
£1,317 GBP
View
B
Retailer 17
-
£1,328 GBP
View
Most Expensive
B
Queensmith
LG788624407 · Oct 27
£1,599 GBP
View
17 more retailers have this diamond
Prices start from £274 GBPSave up to £1,325 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
1.25ct Cushion
£274 GBP