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Cushion|Lab Grown|IGI

3.53ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG660451469

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG660451469

Diamond specifications and retailer prices

From £578 GBP
$774 USD
As of October 31, 2026
Save £4,005 GBP (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,582 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.53ct lab-grown cushion diamond

This 3.53ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660451469 or 660451469. Listed at 11 retailers as of October 31, 2026, with prices from £578 to £4,582, a £4,005 spread on the same certified stone. Do Amore Diamonds lists it at £4,582. 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

3.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660451469
Dimensions10.99 × 7.81 × 5.35 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.99 mm7.81 mm3.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660451469
Side View
Table 64.0%Crown 33.8°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 68.5%

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 31
Current: £4,582 GBP|Low: £578 GBP|High: £5,254 GBP|Avg: £1,601 GBP|-12.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9£578 GBP
Retailer 5£731 GBP
Retailer 10£845 GBP
Retailer 8£895 GBP
Retailer 6£968 GBP
Retailer 2£1,012 GBP
Retailer 11£1,055 GBP
Retailer 7£2,045 GBP
Retailer 3£2,363 GBP
Retailer 4£2,490 GBP
Do Amore Diamonds£4,582 GBP

22 data points across 11 retailers

11 retailers£578 GBP to £4,582 GBP

A
Cheapest Retailer
-
£578 GBP
$774 USD
Final sale: no returns
A
Retailer 2
-
£731 GBP
$980 USD
View
A
Retailer 3
-
£845 GBP
$1,132 USD
View
A
Retailer 4
-
£895 GBP
$1,199 USD
View
Retailer 5
-
£968 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
£1,012 GBP
View
B+
Retailer 7
-
£1,055 GBP
$1,414 USD
View
B
Retailer 8
-
£2,045 GBP
$2,740 USD
View
B
Retailer 9
-
£2,363 GBP
$3,166 USD
View
B
Retailer 10
-
£2,490 GBP
View
Most Expensive
B
Do Amore Diamonds
27-E2DE8C48D · Oct 31
£4,582 GBP
$6,140 USD
View
10 more retailers have this diamond
Prices start from £578 GBPSave up to £4,005 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
3.53ct Cushion
£578 GBP