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Cushion|Lab Grown|IGI

1.63ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG470141765

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG470141765

Diamond specifications and retailer prices

From £180 GBP
$241 USD
As of October 30, 2026
Save £1,343 GBP (88%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,523 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.63ct lab-grown cushion diamond

This 1.63ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG470141765 or 470141765. Listed at 4 retailers as of October 29, 2026, with prices from £180 to £1,523, a £1,343 spread on the same certified stone. Do Amore Diamonds lists it at £1,523. 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

1.63
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG470141765
Dimensions6.99 × 6.61 × 4.30 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
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
6.99 mm6.61 mm1.63 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG470141765
Side View
Table 64.0%Crown 33.5°Girdle: MED-THKPavilion 34.9°Culet: NoneDepth 65.1%

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 30
Current: £1,523 GBP|Low: £113 GBP|High: £1,537 GBP|Avg: £655 GBP|+6.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 26, 2026
Retailer 4£180 GBP
Retailer 3£338 GBP
Retailer 8£380 GBP
Retailer 7£433 GBP
Retailer 5£456 GBP
Retailer 6£608 GBP
Retailer 2£872 GBP
Retailer 9£1,127 GBP
Do Amore Diamonds£1,523 GBP

11 data points across 9 retailers

4 retailers£180 GBP to £1,523 GBP

A
Cheapest Retailer
-
£180 GBP
$241 USD
Final sale: no returns
B+
Retailer 2
-
£338 GBP
$453 USD
View
B
Retailer 3
-
£872 GBP
View
Most Expensive
B
Do Amore Diamonds
27-03466DCAF · Oct 29
£1,523 GBP
$2,040 USD
View
3 more retailers have this diamond
Prices start from £180 GBPSave up to £1,343 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
1.63ct Cushion
£180 GBP