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Oval|Lab Grown|IGI

1.54ct G VS1 Oval Lab Grown Diamond

EX • G/VS1 • IGI LG851656312

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG851656312

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of October 31, 2026
Save £643 GBP (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £837 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 1.54ct lab-grown oval diamond

This 1.54ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851656312 or 851656312. Listed at 12 retailers as of October 31, 2026, with prices from £193 to £837, a £643 spread on the same certified stone. With Clarity lists it at £837. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851656312
Dimensions9.48 × 6.40 × 4.02 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.48 mm6.40 mm1.54 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851656312
Side View
Table 59.0%Crown 34.1°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 62.8%

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 31
Current: £664 GBP|Low: £193 GBP|High: £837 GBP|Avg: £548 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 31, 2026
Retailer 3£193 GBP
Retailer 8£229 GBP
Retailer 6£242 GBP
Retailer 5£353 GBP
Retailer 7£381 GBP
Retailer 1£664 GBP
Retailer 4£666 GBP
Retailer 10£668 GBP
Retailer 2£672 GBP
Retailer 9£832 GBP
With Clarity£837 GBP

4 data points across 11 retailers

12 retailers£193 GBP to £837 GBP

A
Cheapest Retailer
-
£193 GBP
$259 USD
A
Retailer 2
-
£229 GBP
HK$2,400 HKD
View
A
Retailer 3
-
£242 GBP
View
A
Retailer 4
-
£353 GBP
$473 USD
View
A
Retailer 5
-
£381 GBP
$511 USD
View
B+
Retailer 6
-
£664 GBP
$890 USD
View
B+
Retailer 7
-
£666 GBP
$893 USD
View
B+
Retailer 8
-
£668 GBP
SGD 1,210 SGD
View
B+
Retailer 9
-
£672 GBP
$900 USD
View
B+
Retailer 10
-
£754 GBP
$1,010 USD
View
B
Retailer 11
-
£832 GBP
View
Most Expensive
B
With Clarity
851656312 · Oct 31
£837 GBP
$1,121 USD
View
11 more retailers have this diamond
Prices start from £193 GBPSave up to £643 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 Oval
£193 GBP