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Round|Lab Grown|IGI

1.73ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG499189230

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499189230

Diamond specifications and retailer prices

From £713 GBP
$950 USD
As of October 30, 2026
Save £3,065 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,778 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG499189230 or 499189230. Listed at 12 retailers as of October 27, 2026, with prices from £713 to £3,778, a £3,065 spread on the same certified stone. MOH London lists it at £3,778. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499189230
Dimensions7.81 × 7.83 × 4.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.81 mm7.83 mm1.73 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499189230
Side View
Table 59.0%Crown 32.9°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.1%

Caratlytics Score

How it works →
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 30
Current: £3,778 GBP|Low: £713 GBP|High: £3,819 GBP|Avg: £2,038 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2£713 GBP
Retailer 7£1,239 GBP
Retailer 6£1,276 GBP
Retailer 8£1,449 GBP
Retailer 9£1,792 GBP
Retailer 5£2,082 GBP
Retailer 4£2,337 GBP
Retailer 3£2,429 GBP
Retailer 10£2,956 GBP
MOH London£3,778 GBP

17 data points across 10 retailers

12 retailers£713 GBP to £3,778 GBP

A
Cheapest Retailer
-
£713 GBP
$950 USD
A
Retailer 2
-
£1,139 GBP
$1,517 USD
View
B+
Retailer 3
-
£1,239 GBP
$1,650 USD
View
B+
Retailer 4
-
£1,276 GBP
$1,699 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,322 GBP
$1,760 USD
View
Retailer 6
-
£1,322 GBP
$1,760 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,449 GBP
$1,930 USD
View
B
Retailer 8
-
£2,082 GBP
$2,773 USD
View
B
Retailer 9
-
£2,337 GBP
$3,112 USD
View
B
Retailer 10
-
£2,429 GBP
ZAR 52,258 ZAR
View
B
Retailer 11
-
£2,477 GBP
$3,298 USD
View
Most Expensive
B
MOH London
LG499189230 · Oct 27
£3,778 GBP
View
11 more retailers have this diamond
Prices start from £713 GBPSave up to £3,065 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 Round
£713 GBP