CaratHunter
Plans
Round|Lab Grown|IGI

1.80ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG500166065

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500166065

Diamond specifications and retailer prices

From $1,424 SGD
As of November 5, 2026
Save $3,871 SGD (73%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,295 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct 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 LG500166065 or 500166065. Listed at 9 retailers as of November 5, 2026, with prices from $1,424 to $5,295, a $3,871 spread on the same certified stone. MOH London lists it at $5,295. 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

1.80
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500166065
Dimensions7.73 × 7.69 × 4.78 mm
L/W Ratio1.01
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 mm7.69 mm1.80 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500166065
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.9%

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: Nov 5
Current: $5,295 SGD|Low: $1,424 SGD|High: $5,373 SGD|Avg: $2,967 SGD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$1,424 SGD
Retailer 4$1,652 SGD
Retailer 2$1,871 SGD
Retailer 7$2,378 SGD
Retailer 9$2,438 SGD
Retailer 5$2,627 SGD
Retailer 6$3,352 SGD
Retailer 8$4,729 SGD
MOH London$5,295 SGD

16 data points across 9 retailers

9 retailers$1,424 SGD to $5,295 SGD

A
Cheapest Retailer
-
$1,424 SGD
A
Retailer 2
-
$1,549 SGD
View
Retailer 3
-
$1,652 SGD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,652 SGD
View
B+
Retailer 5
-
$1,871 SGD
View
B
Retailer 6
-
$2,627 SGD
View
B
Retailer 7
-
$3,097 SGD
View
B
Retailer 8
-
$3,352 SGD
View
Most Expensive
B
MOH London
LG500166065 · Nov 5
$5,295 SGD
£3,264 GBP
View
8 more retailers have this diamond
Prices start from $1,424 SGDSave up to $3,871 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
1.80ct Round
$1,424 SGD