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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 $2,183 USD
As of November 5, 2026
Save $4,669 USD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,852 USD 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 $2,183 to $6,852, a $4,669 spread on the same certified stone. MOH London lists it at $6,852. 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
Color
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

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,852 USD|Low: $2,095 USD|High: $6,962 USD|Avg: $3,654 USD|-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$2,183 USD
Retailer 9$2,226 USD
Retailer 6$2,375 USD
Retailer 4$2,532 USD
Retailer 8$3,209 USD
Retailer 7$3,480 USD
Retailer 5$3,955 USD
Retailer 2$3,969 USD
Retailer 10$5,666 USD
MOH London$6,852 USD

15 data points across 10 retailers

8 retailers$2,183 USD to $6,852 USD

B+
Cheapest Retailer
-
$2,183 USD
B
Retailer 2
-
$2,375 USD
View
B
Retailer 3
-
$2,532 USD
View
Retailer 4
-
$2,532 USD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$3,480 USD
View
B
Retailer 6
-
$3,955 USD
View
B
Retailer 7
-
$3,969 USD
View
Most Expensive
B
MOH London
LG500163370 · Nov 5
$6,852 USD
£5,395 GBP
View
7 more retailers have this diamond
Prices start from $2,183 USDSave up to $4,669 USD

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
$2,183 USD