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Oval|Lab Grown|IGI

1.72ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG451055380

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451055380

Diamond specifications and retailer prices

From £646 GBP
$860 USD
As of October 29, 2026
Save £2,838 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,484 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.72ct lab-grown oval diamond

This 1.72ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055380 or 451055380. Listed at 10 retailers as of October 27, 2026, with prices from £646 to £3,484, a £2,838 spread on the same certified stone. MOH London lists it at £3,484. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.72
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055380
Dimensions9.71 × 6.66 × 4.14 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.71 mm6.66 mm1.72 ctJ / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451055380
Side View
Table 59.0%Crown 36.1°Girdle: MED-VTKPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,484 GBP|Low: £646 GBP|High: £3,526 GBP|Avg: £1,939 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 25, 2026
Retailer 2£646 GBP
Retailer 4£1,175 GBP
Retailer 6£1,669 GBP
Retailer 3£1,924 GBP
Retailer 5£2,211 GBP
Retailer 7£2,727 GBP
MOH London£3,484 GBP

10 data points across 7 retailers

10 retailers£646 GBP to £3,484 GBP

A
Cheapest Retailer
-
£646 GBP
$860 USD
B+
Retailer 2
-
£1,051 GBP
$1,399 USD
View
B+
Retailer 3
-
£1,143 GBP
$1,522 USD
View
B+
Retailer 4
-
£1,175 GBP
$1,565 USD
View
Final sale: no returns
Retailer 5
-
£1,218 GBP
$1,622 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,218 GBP
$1,622 USD
View
B
Retailer 7
-
£1,924 GBP
$2,562 USD
View
B
Retailer 8
-
£2,211 GBP
$2,945 USD
View
B
Retailer 9
-
£2,284 GBP
$3,041 USD
View
Most Expensive
B
MOH London
LG451055380 · Oct 27
£3,484 GBP
View
9 more retailers have this diamond
Prices start from £646 GBPSave up to £2,838 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
1.72ct Oval
£646 GBP