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Oval|Lab Grown|IGI

1.73ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG451056634

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056634

Diamond specifications and retailer prices

From £716 GBP
$960 USD
As of October 29, 2026
Save £2,852 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,569 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.73ct lab-grown oval diamond

This 1.73ct lab-grown oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056634 or 451056634. Listed at 10 retailers as of October 27, 2026, with prices from £716 to £3,569, a £2,852 spread on the same certified stone. MOH London lists it at £3,569. 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

1.73
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056634
Dimensions9.30 × 6.94 × 4.26 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.30 mm6.94 mm1.73 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056634
Side View
Table 60.5%Crown 33.8°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 61.4%

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 29
Current: £3,569 GBP|Low: £716 GBP|High: £3,612 GBP|Avg: £1,664 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 4£716 GBP
Retailer 2£956 GBP
Retailer 8£1,040 GBP
Retailer 9£1,071 GBP
Retailer 5£1,109 GBP
Retailer 11£1,539 GBP
Retailer 6£1,756 GBP
Retailer 10£2,067 GBP
Retailer 7£2,079 GBP
Retailer 3£2,483 GBP
MOH London£3,569 GBP

15 data points across 11 retailers

10 retailers£716 GBP to £3,569 GBP

A
Cheapest Retailer
-
£716 GBP
$960 USD
A
Retailer 2
-
£956 GBP
$1,281 USD
View
A
Retailer 3
-
£1,040 GBP
$1,394 USD
View
A
Retailer 4
-
£1,071 GBP
$1,435 USD
View
Final sale: no returns
Retailer 5
-
£1,109 GBP
$1,486 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,109 GBP
$1,486 USD
View
B
Retailer 7
-
£1,756 GBP
$2,353 USD
View
B
Retailer 8
-
£2,067 GBP
$2,770 USD
View
B
Retailer 9
-
£2,079 GBP
$2,786 USD
View
Most Expensive
B
MOH London
LG451056634 · Oct 27
£3,569 GBP
View
9 more retailers have this diamond
Prices start from £716 GBPSave up to £2,852 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
1.73ct Oval
£716 GBP