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Cushion|Lab Grown|IGI

1.54ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG833639797

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG833639797

Diamond specifications and retailer prices

From £218 GBP
As of October 24, 2026
Save £598 GBP (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £820 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG833639797 or 833639797. Listed at 10 retailers as of October 24, 2026, with a 275% 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

1.54
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833639797
Dimensions8.45 × 5.82 × 3.95 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.45 mm5.82 mm1.54 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833639797
Side View
Table 61.0%Crown 35.7°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 67.9%

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: Oct 24
Current: £820 GBP|Low: £217 GBP|High: £841 GBP|Avg: £642 GBP|-1.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 24, 2026
Retailer 2£218 GBP
Retailer 5£328 GBP
Retailer 8£445 GBP
Retailer 3£457 GBP
Retailer 7£731 GBP
Retailer 4£788 GBP
Retailer 9£810 GBP
Retailer 6£816 GBP
Rare Carat£820 GBP

27 data points across 9 retailers

10 retailers£218 GBP to £816 GBP

A
Cheapest Retailer
-
£218 GBP
A
Retailer 2
-
£328 GBP
€415 EUR
View
A
Retailer 3
-
£445 GBP
$591 USD
View
A
Retailer 4
-
£457 GBP
A$934 AUD
View
B+
Retailer 5
-
£731 GBP
$971 USD
View
B
Retailer 6
-
£775 GBP
$1,030 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
£788 GBP
View
Price last confirmed 8 days ago
B
Retailer 8
-
£810 GBP
SGD 1,454 SGD
View
Price last confirmed 16 days ago
B
Retailer 9
-
£816 GBP
$1,084 USD
View
Most Expensive
B+
Rare Carat
LGLCU15-144108 · Oct 21
£820 GBP
$1,090 USD
View
Price last confirmed 7 days ago
9 more retailers have this diamond
Prices start from £218 GBPSave up to £598 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
1.54ct Cushion
£218 GBP