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Cushion|Lab Grown|IGI

1.57ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG841613516

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG841613516

Diamond specifications and retailer prices

From £630 GBP
HK$6,600 HKD
As of October 31, 2026
Save £1,399 GBP (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,479 GBP at MOH London · As of November 1, 2026
View at MOH London

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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841613516 or 841613516. Listed at 13 retailers as of October 31, 2026, with a 222% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841613516
Dimensions8.48 × 6.43 × 4.16 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.48 mm6.43 mm1.57 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841613516
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 38.8°Culet: LargeDepth 64.7%

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: £2,479 GBP|Low: £630 GBP|High: £2,542 GBP|Avg: £1,237 GBP|-2.5%
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
November 1, 2026
Retailer 13£630 GBP
Retailer 4£640 GBP
Retailer 7£720 GBP
Retailer 2£765 GBP
Retailer 3£769 GBP
Retailer 8£827 GBP
Retailer 6£872 GBP
Retailer 9£985 GBP
Retailer 11£1,082 GBP
Retailer 5£1,814 GBP
Retailer 10£1,831 GBP
Retailer 12£2,029 GBP
MOH London£2,479 GBP

23 data points across 13 retailers

13 retailers£630 GBP to £2,029 GBP

B+
Cheapest Retailer
-
£630 GBP
HK$6,600 HKD
Retailer 2
-
£640 GBP
$857 USD
View
Price last confirmed 15 days ago
B+
Retailer 3
-
£720 GBP
$965 USD
View
B+
Retailer 4
-
£765 GBP
$1,025 USD
View
B+
Retailer 5
-
£769 GBP
$1,030 USD
View
B+
Retailer 6
-
£827 GBP
$1,108 USD
View
B+
Retailer 7
-
£872 GBP
€1,113 EUR
View
B
Retailer 8
-
£985 GBP
$1,320 USD
View
B
Retailer 9
-
£1,082 GBP
ZAR 23,412 ZAR
View
B
Retailer 10
-
£1,814 GBP
SGD 3,285 SGD
View
B
Retailer 11
-
£1,831 GBP
View
B
Retailer 12
-
£2,029 GBP
$2,719 USD
View
Most Expensive
MOH London
LG841613516 · Nov 1
£2,479 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £630 GBPSave up to £1,399 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
£630 GBP