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Cushion|Lab Grown|IGI

1.60ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG812611164

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812611164

Diamond specifications and retailer prices

From £208 GBP
$278 USD
As of October 30, 2026
Save £1,136 GBP (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,343 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.6ct lab-grown cushion diamond

This 1.6ct 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 very-good cut grade and certified by IGI LG812611164 or 812611164. Listed at 9 retailers as of October 29, 2026, with prices from £208 to £1,343, a £1,136 spread on the same certified stone. Do Amore Diamonds lists it at £1,343. 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

1.60
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812611164
Dimensions8.36 × 5.80 × 4.01 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.36 mm5.80 mm1.60 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812611164
Side View
Table 64.0%Crown 33.7°Girdle: MED-THKPavilion 39°Culet: NoneDepth 69.1%

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: Oct 30
Current: £1,343 GBP|Low: £140 GBP|High: £1,343 GBP|Avg: £558 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 8£157 GBP
Retailer 10£208 GBP
Retailer 4£214 GBP
Retailer 6£237 GBP
Retailer 2£314 GBP
Retailer 5£496 GBP
Retailer 9£611 GBP
Retailer 3£771 GBP
Retailer 7£970 GBP
Do Amore Diamonds£1,343 GBP

26 data points across 10 retailers

9 retailers£208 GBP to £1,343 GBP

A
Cheapest Retailer
-
£208 GBP
$278 USD
Retailer 2
-
£214 GBP
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£237 GBP
$317 USD
View
A
Retailer 4
-
£314 GBP
€401 EUR
View
B+
Retailer 5
-
£496 GBP
$665 USD
View
B
Retailer 6
-
£611 GBP
$819 USD
View
Retailer 7
-
£771 GBP
View
Price last confirmed 10 days ago
B
Retailer 8
-
£970 GBP
$1,300 USD
View
Most Expensive
B
Do Amore Diamonds
27-BA62FA767 · Oct 29
£1,343 GBP
$1,800 USD
View
8 more retailers have this diamond
Prices start from £208 GBPSave up to £1,136 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
1.60ct Cushion
£208 GBP