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Round|Lab Grown|IGI

1.73ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG499106408

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499106408

Diamond specifications and retailer prices

From £709 GBP
$950 USD
As of October 30, 2026
Save £3,061 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,771 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 LG499106408 or 499106408. Listed at 12 retailers as of October 29, 2026, with prices from £709 to £3,771, a £3,061 spread on the same certified stone. MOH London lists it at £3,771. 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 angle35.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499106408
Dimensions7.70 × 7.65 × 4.70 mm
L/W Ratio1.01
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
7.70 mm7.65 mm1.73 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499106408
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.2%

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: £3,771 GBP|Low: £709 GBP|High: £3,801 GBP|Avg: £2,022 GBP|+0.5%
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£709 GBP
Retailer 6£1,267 GBP
Retailer 7£1,440 GBP
Retailer 9£1,451 GBP
Retailer 8£1,781 GBP
Retailer 5£2,070 GBP
Retailer 4£2,323 GBP
Retailer 3£2,414 GBP
Retailer 10£2,938 GBP
MOH London£3,771 GBP

21 data points across 10 retailers

12 retailers£709 GBP to £3,771 GBP

A
Cheapest Retailer
-
£709 GBP
$950 USD
A
Retailer 2
-
£1,132 GBP
$1,517 USD
View
B+
Retailer 3
-
£1,231 GBP
$1,650 USD
View
B+
Retailer 4
-
£1,267 GBP
$1,698 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,314 GBP
$1,760 USD
View
Retailer 6
-
£1,314 GBP
$1,760 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,440 GBP
$1,930 USD
View
B
Retailer 8
-
£2,070 GBP
$2,773 USD
View
B
Retailer 9
-
£2,323 GBP
$3,112 USD
View
B
Retailer 10
-
£2,414 GBP
ZAR 52,258 ZAR
View
B
Retailer 11
-
£2,461 GBP
$3,298 USD
View
Most Expensive
B
MOH London
LG499106408 · Oct 29
£3,771 GBP
View
11 more retailers have this diamond
Prices start from £709 GBPSave up to £3,061 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
£709 GBP