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Cushion|Lab Grown|IGI

1.01ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG847632688

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

Certificate IGI LG847632688

Diamond specifications and retailer prices

From £155 GBP
As of November 6, 2026
Save £655 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £809 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG847632688 or 847632688. Listed at 14 retailers as of November 6, 2026, with prices from £155 to £809, a £655 spread on the same certified stone. Reve Diamonds lists it at £809. 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

1.01
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847632688
Dimensions5.90 × 5.79 × 3.95 mm
L/W Ratio1.02
Girdle conditionFaceted
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
5.90 mm5.79 mm1.01 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847632688
Side View
Table 61.0%Crown 36.1°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 68.2%

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 6
Current: £260 GBP|Low: £146 GBP|High: £813 GBP|Avg: £371 GBP|-1.7%
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
Reve Diamonds
November 6, 2026
Retailer 5£149 GBP
Retailer 11£155 GBP
Retailer 6£182 GBP
Retailer 12£244 GBP
Retailer 1£260 GBP
Retailer 7£269 GBP
Retailer 2£275 GBP
Retailer 3£291 GBP
Retailer 10£388 GBP
Retailer 9£393 GBP
Retailer 4£533 GBP
Retailer 13£538 GBP
Retailer 8£714 GBP
Reve Diamonds£809 GBP

16 data points across 14 retailers

14 retailers£155 GBP to £809 GBP

Retailer 1
-
£149 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£155 GBP
View
Final sale: no returns
A
Retailer 3
-
£182 GBP
View
A
Retailer 4
-
£244 GBP
View
A
Retailer 5
-
£260 GBP
View
B+
Retailer 6
-
£269 GBP
View
B+
Retailer 7
-
£275 GBP
View
B+
Retailer 8
-
£291 GBP
View
B+
Retailer 9
-
£388 GBP
View
B
Retailer 10
-
£393 GBP
View
B
Retailer 11
-
£533 GBP
View
B
Retailer 12
-
£538 GBP
View
B
Retailer 13
-
£714 GBP
View
Most Expensive
B
Reve Diamonds
16DBBEA0C · Nov 6
£809 GBP
$1,083 USD
View
13 more retailers have this diamond
Prices start from £155 GBPSave up to £655 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
1.01ct Cushion
£155 GBP