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1.83ct K SI2 Round Lab Grown Diamond

EX • K/SI2 • IGI LG500163370

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500163370

Diamond specifications and retailer prices

From $3,883 NZD
As of November 5, 2026
Save $8,305 NZD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,188 NZD at MOH London · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500163370 or 500163370. Listed at 8 retailers as of November 5, 2026, with prices from $3,883 to $12,188, a $8,305 spread on the same certified stone. MOH London lists it at $12,188. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500163370
Dimensions7.73 × 7.71 × 4.90 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
7.73 mm7.71 mm1.83 ctK / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500163370
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $12,188 NZD|Low: $3,727 NZD|High: $12,385 NZD|Avg: $6,500 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$3,883 NZD
Retailer 9$3,960 NZD
Retailer 6$4,225 NZD
Retailer 4$4,504 NZD
Retailer 8$5,708 NZD
Retailer 7$6,191 NZD
Retailer 5$7,036 NZD
Retailer 2$7,060 NZD
Retailer 10$10,079 NZD
MOH London$12,188 NZD

15 data points across 10 retailers

8 retailers$3,883 NZD to $12,188 NZD

B+
Cheapest Retailer
-
$3,883 NZD
B
Retailer 2
-
$4,225 NZD
View
B
Retailer 3
-
$4,504 NZD
View
Retailer 4
-
$4,504 NZD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$6,191 NZD
View
B
Retailer 6
-
$7,036 NZD
View
B
Retailer 7
-
$7,060 NZD
View
Most Expensive
B
MOH London
LG500163370 · Nov 5
$12,188 NZD
£5,395 GBP
View
7 more retailers have this diamond
Prices start from $3,883 NZDSave up to $8,305 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.

B+
1.83ct Round
$3,883 NZD