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1.61ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG462132931

Shape and cutting style on the report: Round brilliant

Certificate IGI LG462132931

Diamond specifications and retailer prices

From £679 GBP
$910 USD
As of October 30, 2026
Save £2,449 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,128 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round 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 LG462132931 or 462132931. Listed at 10 retailers as of October 27, 2026, with prices from £679 to £3,128, a £2,449 spread on the same certified stone. MOH London lists it at £3,128. 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

1.61
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG462132931
Dimensions7.50 × 7.47 × 4.65 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
7.50 mm7.47 mm1.61 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG462132931
Side View
Table 57.0%Crown 33.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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: £3,128 GBP|Low: £670 GBP|High: £3,161 GBP|Avg: £1,478 GBP|+0.2%
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£679 GBP
Retailer 3£838 GBP
Retailer 6£939 GBP
Retailer 4£972 GBP
Retailer 7£972 GBP
Retailer 9£1,392 GBP
Retailer 5£1,546 GBP
Retailer 8£1,972 GBP
Retailer 10£2,174 GBP
MOH London£3,128 GBP

13 data points across 10 retailers

10 retailers£679 GBP to £3,128 GBP

A
Cheapest Retailer
-
£679 GBP
$910 USD
B+
Retailer 2
-
£838 GBP
$1,123 USD
View
B+
Retailer 3
-
£912 GBP
$1,222 USD
View
B+
Retailer 4
-
£939 GBP
$1,258 USD
View
Final sale: no returns
Retailer 5
-
£972 GBP
$1,303 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£972 GBP
$1,303 USD
View
B
Retailer 7
-
£1,546 GBP
$2,071 USD
View
B
Retailer 8
-
£1,823 GBP
$2,442 USD
View
B
Retailer 9
-
£1,972 GBP
$2,642 USD
View
Most Expensive
B
MOH London
LG462132931 · Oct 27
£3,128 GBP
View
9 more retailers have this diamond
Prices start from £679 GBPSave up to £2,449 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
1.61ct Round
£679 GBP