CaratHunter
Plans
Round|Lab Grown|IGI

1.83ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG436074660

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436074660

Diamond specifications and retailer prices

From $1,828 NZD
$1,030 USD
As of October 30, 2026
Save $3,082 NZD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,459 NZD at MOH London · As of October 21, 2026
View at MOH London

About this 1.83ct lab-grown round diamond

This 1.83ct 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 LG436074660 or 436074660. Listed at 10 retailers as of October 30, 2026, with a 169% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.83
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074660
Dimensions7.84 × 7.90 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.84 mm7.90 mm1.83 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074660
Side View
Table 58.0%Crown 31.7°GirdlePavilion 40.9°Culet: NoneDepth 60.7%

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 30
Current: $8,459 NZD|Low: $1,828 NZD|High: $8,515 NZD|Avg: $3,929 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,828 NZD
Retailer 4$2,259 NZD
Retailer 7$2,457 NZD
Retailer 9$2,528 NZD
Retailer 5$2,619 NZD
Retailer 11$3,643 NZD
Retailer 6$4,147 NZD
Retailer 10$4,881 NZD
Retailer 8$4,909 NZD
Retailer 3$5,858 NZD
MOH London$8,459 NZD

13 data points across 11 retailers

10 retailers$1,828 NZD to $4,909 NZD

A
Cheapest Retailer
-
$1,828 NZD
$1,030 USD
B+
Retailer 2
-
$2,259 NZD
$1,273 USD
View
B+
Retailer 3
-
$2,457 NZD
$1,385 USD
View
B+
Retailer 4
-
$2,528 NZD
$1,425 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,619 NZD
$1,476 USD
View
Retailer 6
-
$2,619 NZD
$1,476 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$4,147 NZD
$2,337 USD
View
B
Retailer 8
-
$4,881 NZD
$2,751 USD
View
B
Retailer 9
-
$4,909 NZD
$2,767 USD
View
Most Expensive
MOH London
LG436074660 · Oct 21
$8,459 NZD
£3,754 GBP
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from $1,828 NZDSave up to $3,082 NZD

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
1.83ct Round
$1,828 NZD