CaratHunter
Plans
Cushion|Lab Grown|IGI

1.02ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG794602979

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

Certificate IGI LG794602979

Diamond specifications and retailer prices

From £187 GBP
As of November 6, 2026
Save £396 GBP (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £768 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.02ct lab-grown cushion diamond

This 1.02ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG794602979 or 794602979. Listed at 12 retailers as of November 6, 2026, with a 212% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794602979
Dimensions5.85 × 5.63 × 3.90 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.85 mm5.63 mm1.02 ctE / SI1
OriginLab Grown
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI LG794602979
Side View
Table 63.0%Crown 36.5°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £238 GBP|Low: £120 GBP|High: £775 GBP|Avg: £373 GBP|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 31, 2026
Retailer 11£123 GBP
Retailer 3£187 GBP
Retailer 5£229 GBP
Retailer 9£236 GBP
Retailer 1£238 GBP
Retailer 8£260 GBP
Retailer 4£330 GBP
Retailer 7£366 GBP
Retailer 10£376 GBP
Retailer 6£583 GBP
Retailer 2£645 GBP
Reve Diamonds£768 GBP

36 data points across 12 retailers

12 retailers£187 GBP to £583 GBP

B+
Cheapest Retailer
-
£187 GBP
B+
Retailer 2
-
£229 GBP
View
Retailer 3
-
£236 GBP
View
Price last confirmed 11 days ago
B+
Retailer 4
-
£238 GBP
View
Retailer 5
-
£260 GBP
View
Price last confirmed 10 days ago
B+
Retailer 6
-
£330 GBP
View
Retailer 7
-
£343 GBP
View
Price last confirmed 12 days ago
B
Retailer 8
-
£366 GBP
View
Retailer 9
-
£376 GBP
View
Price last confirmed 12 days ago
B
Retailer 10
-
£583 GBP
View
Retailer 11
-
£645 GBP
View
Price last confirmed 17 days ago
Most Expensive
Reve Diamonds
EC50F070A · Oct 25
£768 GBP
$1,028 USD
View
Price last confirmed 12 days ago
11 more retailers have this diamond
Prices start from £187 GBPSave up to £396 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.

B+
1.02ct Cushion
£187 GBP