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Round|Lab Grown|IGI

1.56ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG497155948

Shape and cutting style on the report: Round brilliant

Certificate IGI LG497155948

Diamond specifications and retailer prices

From $970 USD
As of November 5, 2026
Save $2,836 USD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,806 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.56ct lab-grown round diamond

This 1.56ct 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 LG497155948 or 497155948. Listed at 10 retailers as of November 5, 2026, with prices from $970 to $3,806, a $2,836 spread on the same certified stone. MOH London lists it at $3,806. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497155948
Dimensions7.40 × 7.46 × 4.55 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
7.40 mm7.46 mm1.56 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497155948
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.3%

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: $3,806 USD|Low: $931 USD|High: $3,868 USD|Avg: $1,841 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$970 USD
Retailer 6$1,125 USD
Retailer 8$1,125 USD
Retailer 2$1,231 USD
Retailer 3$1,300 USD
Retailer 9$1,649 USD
Retailer 7$1,799 USD
Retailer 4$2,425 USD
MOH London$3,806 USD

40 data points across 9 retailers

10 retailers$970 USD to $3,806 USD

A
Cheapest Retailer
-
$970 USD
A
Retailer 2
-
$1,056 USD
View
A
Retailer 3
-
$1,125 USD
View
Retailer 4
-
$1,125 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$1,231 USD
View
B+
Retailer 6
-
$1,300 USD
View
B+
Retailer 7
-
$1,799 USD
View
B
Retailer 8
-
$2,109 USD
View
B
Retailer 9
-
$2,425 USD
View
Most Expensive
B
MOH London
LG497155948 · Nov 5
$3,806 USD
£2,997 GBP
View
9 more retailers have this diamond
Prices start from $970 USDSave up to $2,836 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
1.56ct Round
$970 USD