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Round|Lab Grown|IGI

1.73ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG407948743

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407948743

Diamond specifications and retailer prices

From £954 GBP
$1,270 USD
As of October 29, 2026
Save £2,840 GBP (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,794 GBP at MOH London · As of October 29, 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 LG407948743 or 407948743. Listed at 12 retailers as of October 29, 2026, with prices from £954 to £3,794, a £2,840 spread on the same certified stone. MOH London lists it at £3,794. 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 angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407948743
Dimensions7.68 × 7.74 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.68 mm7.74 mm1.73 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407948743
Side View
Table 59.0%Crown 34.3°GirdlePavilion 40.5°Culet: NoneDepth 60.4%

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 29
Current: £3,794 GBP|Low: £954 GBP|High: £3,824 GBP|Avg: £2,023 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3£954 GBP
Retailer 6£1,239 GBP
Retailer 7£1,275 GBP
Retailer 8£1,449 GBP
Retailer 9£1,792 GBP
Retailer 5£2,082 GBP
Retailer 4£2,337 GBP
Retailer 2£2,429 GBP
Retailer 10£2,956 GBP
MOH London£3,794 GBP

18 data points across 10 retailers

12 retailers£954 GBP to £3,794 GBP

A
Cheapest Retailer
-
£954 GBP
$1,270 USD
A
Retailer 2
-
£1,139 GBP
$1,517 USD
View
B+
Retailer 3
-
£1,239 GBP
$1,650 USD
View
B+
Retailer 4
-
£1,275 GBP
$1,698 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
LG407948743 · Oct 29
£3,794 GBP
View
11 more retailers have this diamond
Prices start from £954 GBPSave up to £2,840 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
£954 GBP