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Cushion|Lab Grown|IGI

1.35ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG680586642

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG680586642

Diamond specifications and retailer prices

From £360 GBP
$482 USD
As of October 29, 2026
Save £1,431 GBP (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,791 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.35ct lab-grown cushion diamond

This 1.35ct 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 standard cut grade and certified by IGI LG680586642 or 680586642. Listed at 8 retailers as of October 29, 2026, with prices from £360 to £1,791, a £1,431 spread on the same certified stone. Do Amore Diamonds lists it at £1,791. 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

1.35
Carat
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680586642
Dimensions6.58 × 6.33 × 4.29 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
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
6.58 mm6.33 mm1.35 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680586642
Side View
Table 58.0%Crown 35.9°Girdle: THN-MEDPavilion 39.5°Culet: NoneDepth 67.8%

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 29
Current: £1,791 GBP|Low: £360 GBP|High: £1,791 GBP|Avg: £762 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 11£360 GBP
Retailer 8£362 GBP
Retailer 2£378 GBP
Retailer 9£422 GBP
Retailer 10£446 GBP
Retailer 12£480 GBP
Retailer 13£522 GBP
Retailer 7£689 GBP
Retailer 5£888 GBP
Retailer 3£1,048 GBP
Retailer 6£1,137 GBP
Retailer 4£1,228 GBP
Do Amore Diamonds£1,791 GBP

30 data points across 13 retailers

8 retailers£360 GBP to £1,791 GBP

A
Cheapest Retailer
-
£360 GBP
$482 USD
A
Retailer 2
-
£362 GBP
$485 USD
View
A
Retailer 3
-
£378 GBP
View
B+
Retailer 4
-
£422 GBP
$566 USD
View
B+
Retailer 5
-
£446 GBP
$598 USD
View
B
Retailer 6
-
£689 GBP
A$1,420 AUD
View
B
Retailer 7
-
£1,137 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1677104 · Oct 29
£1,791 GBP
$2,400 USD
View
7 more retailers have this diamond
Prices start from £360 GBPSave up to £1,431 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
1.35ct Cushion
£360 GBP