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Cushion|Lab Grown|IGI

1.60ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG687559354

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG687559354

Diamond specifications and retailer prices

From £205 GBP
$275 USD
As of November 1, 2026
Save £914 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,119 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG687559354 or 687559354. Listed at 10 retailers as of October 31, 2026, with prices from £205 to £1,119, a £914 spread on the same certified stone. Taylor and Hart lists it at £1,119. 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
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687559354
Dimensions7.02 × 6.75 × 4.38 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.02 mm6.75 mm1.60 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687559354
Side View
Table 63.0%Crown 33.1°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 64.9%

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: Nov 1
Current: £910 GBP|Low: £146 GBP|High: £1,119 GBP|Avg: £633 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 11£205 GBP
Retailer 10£381 GBP
Retailer 7£390 GBP
Retailer 6£408 GBP
Retailer 13£414 GBP
Retailer 2£504 GBP
Retailer 8£529 GBP
Retailer 3£588 GBP
Retailer 9£687 GBP
Retailer 5£717 GBP
Retailer 12£881 GBP
Retailer 1£910 GBP
Retailer 4£1,046 GBP
Taylor and Hart£1,119 GBP

22 data points across 14 retailers

10 retailers£205 GBP to £1,119 GBP

A
Cheapest Retailer
-
£205 GBP
$275 USD
Final sale: no returns
B+
Retailer 2
-
£381 GBP
$511 USD
View
B+
Retailer 3
-
£390 GBP
ZAR 8,447 ZAR
View
B+
Retailer 4
-
£408 GBP
€521 EUR
View
B+
Retailer 5
-
£414 GBP
$555 USD
View
B+
Retailer 6
-
£529 GBP
A$1,091 AUD
View
B+
Retailer 7
-
£687 GBP
$920 USD
View
B
Retailer 8
-
£881 GBP
SGD 1,595 SGD
View
B
Retailer 9
-
£910 GBP
View
Most Expensive
B
Taylor and Hart
ZJ951Y4 · Oct 31
£1,119 GBP
$1,499 USD
View
9 more retailers have this diamond
Prices start from £205 GBPSave up to £914 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
£205 GBP