CaratHunter
Plans
Oval|Lab Grown|IGI

1.56ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG451056991

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056991

Diamond specifications and retailer prices

From $1,212 SGD
As of November 5, 2026
Save $3,545 SGD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,758 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.56ct lab-grown oval diamond

This 1.56ct lab-grown oval 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 LG451056991 or 451056991. Listed at 9 retailers as of November 5, 2026, with prices from $1,212 to $4,758, a $3,545 spread on the same certified stone. MOH London lists it at $4,758. 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

1.56
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056991
Dimensions8.94 × 6.70 × 4.12 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
8.94 mm6.70 mm1.56 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056991
Side View
Table 56.5%Crown 35.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.5%

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: $4,758 SGD|Low: $1,164 SGD|High: $4,836 SGD|Avg: $2,469 SGD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,212 SGD
Retailer 8$1,320 SGD
Retailer 5$1,407 SGD
Retailer 2$1,634 SGD
Retailer 9$2,071 SGD
Retailer 6$2,252 SGD
Retailer 3$3,032 SGD
Retailer 7$3,955 SGD
MOH London$4,758 SGD

15 data points across 9 retailers

9 retailers$1,212 SGD to $4,758 SGD

A
Cheapest Retailer
-
$1,212 SGD
A
Retailer 2
-
$1,320 SGD
View
Retailer 3
-
$1,407 SGD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,407 SGD
View
B+
Retailer 5
-
$1,634 SGD
View
B+
Retailer 6
-
$2,252 SGD
View
B
Retailer 7
-
$3,032 SGD
View
B
Retailer 8
-
$3,955 SGD
View
Most Expensive
B
MOH London
LG451056991 · Nov 5
$4,758 SGD
£2,923 GBP
View
8 more retailers have this diamond
Prices start from $1,212 SGDSave up to $3,545 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
1.56ct Oval
$1,212 SGD