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Cushion|Lab Grown|IGI

1.26ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG779666510

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG779666510

Diamond specifications and retailer prices

From £172 GBP
$230 USD
As of October 30, 2026
Save £731 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £903 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.26ct lab-grown cushion diamond

This 1.26ct 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 LG779666510 or 779666510. Listed at 18 retailers as of October 30, 2026, with prices from £172 to £903, a £731 spread on the same certified stone. Reve Diamonds lists it at £903. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779666510
Dimensions6.11 × 6.11 × 3.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.11 mm6.11 mm1.26 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779666510
Side View
Table 65.0%Crown 34.7°Girdle: STK-THKPavilion 32.6°Culet: NoneDepth 61.5%

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: Oct 30
Current: £346 GBP|Low: £172 GBP|High: £903 GBP|Avg: £473 GBP|+3.7%
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
Retailer 15
Reve Diamonds
October 31, 2026
Retailer 4£172 GBP
Retailer 2£190 GBP
Retailer 9£254 GBP
Retailer 7£255 GBP
Retailer 10£319 GBP
Retailer 14£321 GBP
Retailer 1£346 GBP
Retailer 6£373 GBP
Retailer 8£460 GBP
Retailer 13£464 GBP
Retailer 12£541 GBP
Retailer 5£592 GBP
Retailer 3£616 GBP
Retailer 15£724 GBP
Retailer 11£892 GBP
Reve Diamonds£903 GBP

44 data points across 16 retailers

18 retailers£172 GBP to £903 GBP

A
Cheapest Retailer
-
£172 GBP
$230 USD
Final sale: no returns
A
Retailer 2
-
£190 GBP
$254 USD
View
A
Retailer 3
-
£254 GBP
View
B+
Retailer 4
-
£255 GBP
$342 USD
View
A
Retailer 5
-
£319 GBP
€407 EUR
View
Retailer 6
-
£321 GBP
ZAR 6,941 ZAR
View
Price last confirmed 8 days ago
A
Retailer 7
-
£346 GBP
View
A
Retailer 8
-
£372 GBP
$499 USD
View
A
Retailer 9
-
£373 GBP
$500 USD
View
B+
Retailer 10
-
£460 GBP
$617 USD
View
B+
Retailer 11
-
£464 GBP
A$956 AUD
View
B+
Retailer 12
-
£541 GBP
$725 USD
View
Retailer 13
-
£592 GBP
A$1,221 AUD
View
Price last confirmed 26 days ago
B+
Retailer 14
-
£616 GBP
SGD 1,116 SGD
View
B
Retailer 15
-
£649 GBP
$870 USD
View
B
Retailer 16
-
£724 GBP
$970 USD
View
B
Retailer 17
-
£892 GBP
View
Most Expensive
B
Reve Diamonds
D3013E977 · Oct 30
£903 GBP
$1,209 USD
View
17 more retailers have this diamond
Prices start from £172 GBPSave up to £731 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
1.26ct Cushion
£172 GBP