CaratHunter
Plans
Cushion|Lab Grown|IGI

1.60ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG11717911

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG11717911

Diamond specifications and retailer prices

From £319 GBP
$428 USD
As of October 30, 2026
Save £1,390 GBP (81%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,709 GBP at Do Amore Diamonds · As of October 31, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG11717911 or 11717911. Listed at 5 retailers as of October 30, 2026, with prices from £319 to £1,709, a £1,390 spread on the same certified stone. Do Amore Diamonds lists it at £1,709. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG11717911
Dimensions6.71 × 6.70 × 4.54 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.71 mm6.70 mm1.60 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG11717911
Side View
Table 59.0%Crown 35.5°Girdle: STK-UNDPavilion 39.1°Culet: NoneDepth 67.7%

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 30
Current: £1,709 GBP|Low: £319 GBP|High: £1,709 GBP|Avg: £852 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5£319 GBP
Retailer 3£426 GBP
Retailer 4£456 GBP
Retailer 6£1,067 GBP
Retailer 2£1,143 GBP
Do Amore Diamonds£1,709 GBP

8 data points across 6 retailers

5 retailers£319 GBP to £1,709 GBP

A
Cheapest Retailer
-
£319 GBP
$428 USD
A
Retailer 2
-
£426 GBP
$571 USD
View
A
Retailer 3
-
£456 GBP
$611 USD
View
B
Retailer 4
-
£1,143 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1364069 · Oct 31
£1,709 GBP
$2,290 USD
View
4 more retailers have this diamond
Prices start from £319 GBPSave up to £1,390 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
£319 GBP