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1.83ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG478111992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478111992

Diamond specifications and retailer prices

From $1,447 SGD
As of November 5, 2026
Save $3,948 SGD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,395 SGD at MOH London · As of November 3, 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 LG478111992 or 478111992. Listed at 10 retailers as of November 3, 2026, with prices from $1,447 to $5,395, a $3,948 spread on the same certified stone. MOH London lists it at $5,395. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478111992
Dimensions7.71 × 7.75 × 4.89 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.71 mm7.75 mm1.83 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478111992
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $5,395 SGD|Low: $1,390 SGD|High: $5,467 SGD|Avg: $2,574 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$1,447 SGD
Retailer 5$1,680 SGD
Retailer 7$1,680 SGD
Retailer 2$1,837 SGD
Retailer 3$1,903 SGD
Retailer 9$2,413 SGD
Retailer 6$2,671 SGD
Retailer 8$3,308 SGD
MOH London$5,395 SGD

38 data points across 9 retailers

10 retailers$1,447 SGD to $5,395 SGD

A
Cheapest Retailer
-
$1,447 SGD
A
Retailer 2
-
$1,575 SGD
View
Retailer 3
-
$1,680 SGD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,680 SGD
View
A
Retailer 5
-
$1,837 SGD
View
B+
Retailer 6
-
$1,903 SGD
View
B
Retailer 7
-
$2,671 SGD
View
B
Retailer 8
-
$3,147 SGD
View
B
Retailer 9
-
$3,308 SGD
View
Most Expensive
B
MOH London
LG478111992 · Nov 3
$5,395 SGD
£3,326 GBP
View
9 more retailers have this diamond
Prices start from $1,447 SGDSave up to $3,948 SGD

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
$1,447 SGD