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Cushion|Lab Grown|IGI

1.30ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG786634349

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG786634349

Diamond specifications and retailer prices

From £240 GBP
$322 USD
As of November 1, 2026
Save £1,426 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,666 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG786634349 or 786634349. Listed at 18 retailers as of October 27, 2026, with prices from £240 to £1,666, a £1,426 spread on the same certified stone. Queensmith lists it at £1,666. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786634349
Dimensions7.03 × 6.28 × 3.81 mm
L/W Ratio1.12
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
7.03 mm6.28 mm1.30 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786634349
Side View
Table 57.0%Crown 33°Girdle: STK-THKPavilion 40.6°Culet: LargeDepth 60.7%

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: £532 GBP|Low: £230 GBP|High: £1,209 GBP|Avg: £606 GBP|+2.0%
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 12£240 GBP
Retailer 8£268 GBP
Retailer 5£279 GBP
Retailer 3£298 GBP
Retailer 14£298 GBP
Retailer 13£401 GBP
Retailer 10£414 GBP
Retailer 1£532 GBP
Retailer 9£727 GBP
Retailer 11£873 GBP
Retailer 4£953 GBP
Retailer 2£958 GBP
Retailer 6£1,158 GBP
Retailer 7£1,194 GBP

44 data points across 14 retailers

18 retailers£240 GBP to £1,666 GBP

A
Cheapest Retailer
-
£240 GBP
$322 USD
A
Retailer 2
-
£268 GBP
$360 USD
View
Final sale: no returns
A
Retailer 3
-
£279 GBP
$374 USD
View
Retailer 4
-
£298 GBP
$400 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£298 GBP
$400 USD
View
A
Retailer 6
-
£401 GBP
$538 USD
View
A
Retailer 7
-
£414 GBP
$555 USD
View
B+
Retailer 8
-
£423 GBP
$568 USD
View
B+
Retailer 9
-
£532 GBP
View
B+
Retailer 10
-
£727 GBP
A$1,500 AUD
View
B
Retailer 11
-
£873 GBP
$1,172 USD
View
B
Retailer 12
-
£953 GBP
SGD 1,729 SGD
View
B
Retailer 13
-
£958 GBP
$1,285 USD
View
B
Retailer 14
-
£991 GBP
$1,330 USD
View
B
Retailer 15
-
£1,158 GBP
View
B
Retailer 16
-
£1,180 GBP
$1,584 USD
View
B
Retailer 17
-
£1,194 GBP
View
Most Expensive
B
Queensmith
LG786634349 · Oct 27
£1,666 GBP
View
17 more retailers have this diamond
Prices start from £240 GBPSave up to £1,426 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
1.30ct Cushion
£240 GBP