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Round|Lab Grown|IGI

1.59ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686409

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686409

Diamond specifications and retailer prices

From $260 SGD
$203 USD
As of November 1, 2026
Save $1,247 SGD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,507 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.59ct lab-grown round diamond

This 1.59ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818686409 or 818686409. Listed at 15 retailers as of November 1, 2026, with prices from $260 to $1,507, a $1,247 spread on the same certified stone. MOH London lists it at $1,507. 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

1.59
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686409
Dimensions7.49 × 7.47 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.49 mm7.47 mm1.59 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686409
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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 1
Current: $1,507 SGD|Low: $260 SGD|High: $1,525 SGD|Avg: $799 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$260 SGD
Retailer 9$322 SGD
Retailer 10$559 SGD
Retailer 4$589 SGD
Retailer 2$591 SGD
Retailer 11$635 SGD
Retailer 6$835 SGD
Retailer 5$927 SGD
Retailer 3$1,104 SGD
Retailer 8$1,163 SGD
MOH London$1,507 SGD

40 data points across 11 retailers

15 retailers$260 SGD to $1,507 SGD

A
Cheapest Retailer
-
$260 SGD
$203 USD
A
Retailer 2
-
$302 SGD
$236 USD
View
A
Retailer 3
-
$322 SGD
$252 USD
View
Retailer 4
-
$322 SGD
$252 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$559 SGD
$437 USD
View
A
Retailer 6
-
$589 SGD
€439 EUR
View
A
Retailer 7
-
$591 SGD
£364 GBP
View
A
Retailer 8
-
$635 SGD
$497 USD
View
B+
Retailer 9
-
$835 SGD
$653 USD
View
B+
Retailer 10
-
$914 SGD
$715 USD
View
Retailer 11
-
$927 SGD
$725 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$1,036 SGD
$810 USD
View
B
Retailer 13
-
$1,104 SGD
$864 USD
View
B
Retailer 14
-
$1,163 SGD
$910 USD
View
Most Expensive
B
MOH London
LG818686409 · Nov 1
$1,507 SGD
£928 GBP
View
14 more retailers have this diamond
Prices start from $260 SGDSave up to $1,247 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
1.59ct Round
$260 SGD