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Cushion|Lab Grown|IGI

1.63ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG816608072

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG816608072

Diamond specifications and retailer prices

From £241 GBP
$323 USD
As of November 1, 2026
Save £956 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,197 GBP at MOH London · As of November 1, 2026
View at MOH London

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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG816608072 or 816608072. Listed at 14 retailers as of November 1, 2026, with prices from £241 to £1,197, a £956 spread on the same certified stone. MOH London lists it at £1,197. 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

1.63
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608072
Dimensions7.63 × 6.77 × 4.33 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.63 mm6.77 mm1.63 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608072
Side View
Table 55.0%Crown 34.2°Girdle: MED-STKPavilion 41.7°Culet: LargeDepth 64.0%

Caratlytics Score

How it works →
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: Nov 1
Current: £1,197 GBP|Low: £241 GBP|High: £1,204 GBP|Avg: £590 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 13£241 GBP
Retailer 4£270 GBP
Retailer 3£279 GBP
Retailer 8£299 GBP
Retailer 11£299 GBP
Retailer 14£402 GBP
Retailer 7£414 GBP
Retailer 12£424 GBP
Retailer 2£534 GBP
Retailer 9£876 GBP
Retailer 5£958 GBP
Retailer 10£961 GBP
Retailer 6£994 GBP
MOH London£1,197 GBP

14 data points across 14 retailers

14 retailers£241 GBP to £1,197 GBP

A
Cheapest Retailer
-
£241 GBP
$323 USD
A
Retailer 2
-
£270 GBP
$362 USD
View
Final sale: no returns
A
Retailer 3
-
£279 GBP
$375 USD
View
Retailer 4
-
£299 GBP
$401 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£299 GBP
$401 USD
View
B+
Retailer 6
-
£402 GBP
$540 USD
View
A
Retailer 7
-
£414 GBP
$555 USD
View
B+
Retailer 8
-
£424 GBP
$569 USD
View
B+
Retailer 9
-
£534 GBP
View
B
Retailer 10
-
£876 GBP
$1,176 USD
View
B
Retailer 11
-
£958 GBP
SGD 1,737 SGD
View
B
Retailer 12
-
£961 GBP
$1,289 USD
View
B
Retailer 13
-
£994 GBP
$1,334 USD
View
Most Expensive
B
MOH London
LG816608072 · Nov 1
£1,197 GBP
View
13 more retailers have this diamond
Prices start from £241 GBPSave up to £956 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
£241 GBP