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Oval|Lab Grown|IGI

1.51ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG445038609

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038609

Diamond specifications and retailer prices

From €734 EUR
As of November 6, 2026
Save €1,806 EUR (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,377 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445038609 or 445038609. Listed at 12 retailers as of November 5, 2026, with a 246% 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038609
Dimensions8.93 × 6.46 × 4.08 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.93 mm6.46 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445038609
Side View
Table 60.5%Crown 36.7°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 63.2%

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 6
Current: €4,377 EUR|Low: €734 EUR|High: €4,407 EUR|Avg: €1,998 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
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 8€734 EUR
Retailer 7€1,168 EUR
Retailer 12€1,271 EUR
Retailer 13€1,308 EUR
Retailer 9€1,355 EUR
Retailer 14€1,355 EUR
Retailer 3€1,509 EUR
Retailer 5€1,867 EUR
Retailer 2€1,924 EUR
Retailer 10€2,143 EUR
Retailer 4€2,526 EUR
Retailer 11€2,540 EUR
Retailer 6€3,879 EUR
MOH London€4,377 EUR

41 data points across 14 retailers

12 retailers€734 EUR to €2,540 EUR

A
Cheapest Retailer
-
€734 EUR
B+
Retailer 2
-
€1,168 EUR
View
B+
Retailer 3
-
€1,271 EUR
View
B+
Retailer 4
-
€1,308 EUR
View
Final sale: no returns
Retailer 5
-
€1,355 EUR
View
Price last confirmed 25 days ago
B+
Retailer 6
-
€1,355 EUR
View
B+
Retailer 7
-
€1,509 EUR
View
B
Retailer 8
-
€1,924 EUR
View
B
Retailer 9
-
€2,143 EUR
View
B
Retailer 10
-
€2,526 EUR
View
B
Retailer 11
-
€2,540 EUR
View
Most Expensive
MOH London
LG445038609 · Oct 29
€4,377 EUR
£3,848 GBP
View
Price last confirmed 8 days ago
11 more retailers have this diamond
Prices start from €734 EURSave up to €1,806 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
€734 EUR