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Cushion|Lab Grown|IGI

1.76ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG560205640

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG560205640

Diamond specifications and retailer prices

From £189 GBP
$252 USD
As of October 27, 2026
Save £1,418 GBP (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,607 GBP at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.76ct lab-grown cushion diamond

This 1.76ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG560205640 or 560205640. Listed at 5 retailers as of October 27, 2026, with prices from £189 to £1,607, a £1,418 spread on the same certified stone. Do Amore Diamonds lists it at £1,607. 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

1.76
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560205640
Dimensions7.01 × 6.95 × 4.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.01 mm6.95 mm1.76 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560205640
Side View
Table 58.5%Crown 36°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 66.9%

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: Oct 27
Current: £1,607 GBP|Low: £119 GBP|High: £1,622 GBP|Avg: £695 GBP|+7.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 5£189 GBP
Retailer 4£354 GBP
Retailer 9£360 GBP
Retailer 10£428 GBP
Retailer 6£469 GBP
Retailer 7£631 GBP
Retailer 3£773 GBP
Retailer 2£918 GBP
Retailer 8£1,254 GBP
Do Amore Diamonds£1,607 GBP

12 data points across 10 retailers

5 retailers£189 GBP to £1,607 GBP

A
Cheapest Retailer
-
£189 GBP
$252 USD
Final sale: no returns
B+
Retailer 2
-
£354 GBP
$471 USD
View
B
Retailer 3
-
£773 GBP
$1,030 USD
View
Price last confirmed 8 days ago
B
Retailer 4
-
£918 GBP
View
Most Expensive
B
Do Amore Diamonds
27-350823CD0 · Oct 27
£1,607 GBP
$2,140 USD
View
4 more retailers have this diamond
Prices start from £189 GBPSave up to £1,418 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
1.76ct Cushion
£189 GBP