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Cushion|Lab Grown|IGI

1.57ct H VS1 Cushion Lab Grown Diamond

VG • H/VS1 • IGI LG569303701

Certificate IGI LG569303701

Diamond specifications and retailer prices

From £640 GBP
$857 USD
As of October 31, 2026
Save £331 GBP (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £970 GBP at Zales · As of October 30, 2026
View at Zales

About this 1.57ct lab-grown cushion diamond

This 1.57ct 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 very-good cut grade and certified by IGI LG569303701 or 569303701. Listed at 4 retailers as of October 30, 2026, with prices from £640 to £970, a £331 spread on the same certified stone. Zales lists it at £970. 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

1.57
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG569303701
Dimensions7.83 × 6.48 × 4.15 mm
L/W Ratio1.21
Top View
7.83 mm6.48 mm1.57 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG569303701
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £640 GBP|Low: £640 GBP|High: £970 GBP|Avg: £876 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 1£640 GBP
Retailer 2£806 GBP
Retailer 3£970 GBP
Zales£970 GBP

2 data points across 4 retailers

4 retailers£640 GBP to £970 GBP

B+
Cheapest Retailer
-
£640 GBP
$857 USD
B
Retailer 2
-
£806 GBP
$1,080 USD
View
B
Retailer 3
-
£970 GBP
$1,300 USD
View
Most Expensive
B
Zales
516990870 · Oct 30
£970 GBP
$1,300 USD
View
3 more retailers have this diamond
Prices start from £640 GBPSave up to £331 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.

B+
1.57ct Cushion
£640 GBP