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1.83ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG447098934

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447098934

Diamond specifications and retailer prices

From $1,133 USD
As of November 5, 2026
Save $3,091 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,224 USD at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447098934 or 447098934. Listed at 10 retailers as of November 1, 2026, with prices from $1,133 to $4,224, a $3,091 spread on the same certified stone. MOH London lists it at $4,224. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447098934
Dimensions7.79 × 7.80 × 4.89 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.79 mm7.80 mm1.83 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447098934
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.8%

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: Nov 5
Current: $4,224 USD|Low: $1,088 USD|High: $4,280 USD|Avg: $2,171 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$1,133 USD
Retailer 5$1,315 USD
Retailer 7$1,315 USD
Retailer 2$1,438 USD
Retailer 3$1,490 USD
Retailer 9$1,889 USD
Retailer 6$2,091 USD
Retailer 8$2,590 USD
Retailer 10$3,763 USD
MOH London$4,224 USD

39 data points across 10 retailers

10 retailers$1,133 USD to $4,224 USD

A
Cheapest Retailer
-
$1,133 USD
A
Retailer 2
-
$1,233 USD
View
A
Retailer 3
-
$1,315 USD
View
Retailer 4
-
$1,315 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$1,438 USD
View
B+
Retailer 6
-
$1,490 USD
View
B
Retailer 7
-
$2,091 USD
View
B
Retailer 8
-
$2,464 USD
View
B
Retailer 9
-
$2,590 USD
View
Most Expensive
B
MOH London
LG447098934 · Nov 1
$4,224 USD
£3,326 GBP
View
9 more retailers have this diamond
Prices start from $1,133 USDSave up to $3,091 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.

A
1.83ct Round
$1,133 USD