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Oval|Lab Grown|IGI

1.51ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG436044497

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436044497

Diamond specifications and retailer prices

From €821 EUR
As of November 5, 2026
Save €1,857 EUR (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,248 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct 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 LG436044497 or 436044497. Listed at 10 retailers as of November 5, 2026, with a 226% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436044497
Dimensions8.65 × 6.52 × 4.16 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.65 mm6.52 mm1.51 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436044497
Side View
Table 55.0%Crown 35.4°Girdle: UNDPavilion 41.3°Culet: NoneDepth 63.8%

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: €3,248 EUR|Low: €788 EUR|High: €3,269 EUR|Avg: €1,727 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6€821 EUR
Retailer 10€894 EUR
Retailer 7€953 EUR
Retailer 4€1,111 EUR
Retailer 2€1,324 EUR
Retailer 11€1,408 EUR
Retailer 8€1,526 EUR
Retailer 5€2,119 EUR
Retailer 9€2,678 EUR
Retailer 3€2,727 EUR
MOH London€3,248 EUR

29 data points across 11 retailers

10 retailers€821 EUR to €2,678 EUR

A
Cheapest Retailer
-
€821 EUR
A
Retailer 2
-
€894 EUR
View
Retailer 3
-
€953 EUR
View
Price last confirmed 25 days ago
B+
Retailer 4
-
€953 EUR
View
B+
Retailer 5
-
€1,111 EUR
View
B+
Retailer 6
-
€1,324 EUR
View
B+
Retailer 7
-
€1,526 EUR
View
B
Retailer 8
-
€2,119 EUR
View
B
Retailer 9
-
€2,678 EUR
View
Most Expensive
MOH London
LG436044497 · Oct 29
€3,248 EUR
£2,855 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from €821 EURSave up to €1,857 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
1.51ct Oval
€821 EUR