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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 €847 EUR
As of November 5, 2026
Save €2,478 EUR (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €3,325 EUR 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 €847 to €3,325, a €2,478 spread on the same certified stone. MOH London lists it at €3,325. 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
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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

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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: €3,325 EUR|Low: €813 EUR|High: €3,379 EUR|Avg: €1,726 EUR|-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€847 EUR
Retailer 8€923 EUR
Retailer 5€983 EUR
Retailer 2€1,142 EUR
Retailer 9€1,447 EUR
Retailer 6€1,574 EUR
Retailer 3€2,119 EUR
Retailer 7€2,764 EUR
MOH London€3,325 EUR

15 data points across 9 retailers

9 retailers€847 EUR to €3,325 EUR

A
Cheapest Retailer
-
€847 EUR
A
Retailer 2
-
€923 EUR
View
Retailer 3
-
€983 EUR
View
Price last confirmed 25 days ago
A
Retailer 4
-
€983 EUR
View
B+
Retailer 5
-
€1,142 EUR
View
B+
Retailer 6
-
€1,574 EUR
View
B
Retailer 7
-
€2,119 EUR
View
B
Retailer 8
-
€2,764 EUR
View
Most Expensive
B
MOH London
LG451056991 · Nov 5
€3,325 EUR
£2,923 GBP
View
8 more retailers have this diamond
Prices start from €847 EURSave up to €2,478 EUR

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
€847 EUR