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Cushion|Lab Grown|IGI

1.01ct H SI1 Cushion Lab Grown Diamond

EX • H/SI1 • IGI LG783632711

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG783632711

Diamond specifications and retailer prices

From £173 GBP
$232 USD
As of November 1, 2026
Save £516 GBP (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £934 GBP at Reve Diamonds · As of October 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783632711 or 783632711. Listed at 10 retailers as of October 27, 2026, with a 298% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783632711
Dimensions8.44 × 4.78 × 2.97 mm
L/W Ratio1.77
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.44 mm4.78 mm1.01 ctH / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG783632711
Side View
Table 57.0%Crown 34°Girdle: MED-VTKPavilion 39.2°Culet: LargeDepth 62.1%

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 1
Current: £224 GBP|Low: £149 GBP|High: £934 GBP|Avg: £473 GBP|-19.0%
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 7£173 GBP
Retailer 2£182 GBP
Retailer 6£212 GBP
Retailer 1£224 GBP
Retailer 8£242 GBP
Retailer 4£309 GBP
Retailer 10£432 GBP
Retailer 3£542 GBP
Retailer 5£589 GBP
Retailer 11£689 GBP
Retailer 9£814 GBP
Reve Diamonds£934 GBP

27 data points across 12 retailers

10 retailers£173 GBP to £689 GBP

B+
Cheapest Retailer
-
£173 GBP
$232 USD
A
Retailer 2
-
£212 GBP
$285 USD
View
A
Retailer 3
-
£224 GBP
€286 EUR
View
B+
Retailer 4
-
£242 GBP
View
A
Retailer 5
-
£309 GBP
$415 USD
View
B+
Retailer 6
-
£432 GBP
$580 USD
View
B+
Retailer 7
-
£589 GBP
$790 USD
View
B+
Retailer 8
-
£689 GBP
$924 USD
View
Retailer 9
-
£814 GBP
View
Price last confirmed 14 days ago
Most Expensive
Reve Diamonds
B84B243B2 · Oct 25
£934 GBP
$1,253 USD
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from £173 GBPSave up to £516 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
£173 GBP