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Oval|Lab Grown|IGI

1.80ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG451057750

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057750

Diamond specifications and retailer prices

From €886 EUR
$990 USD
As of October 31, 2026
Save €3,709 EUR (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,595 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown oval diamond

This 1.8ct 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 LG451057750 or 451057750. Listed at 12 retailers as of October 31, 2026, with prices from €886 to €4,595, a €3,709 spread on the same certified stone. MOH London lists it at €4,595. 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

1.80
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057750
Dimensions9.27 × 6.98 × 4.40 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.27 mm6.98 mm1.80 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057750
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.0%

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: Oct 31
Current: €4,595 EUR|Low: €886 EUR|High: €4,656 EUR|Avg: €2,316 EUR
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 1, 2026
Retailer 9€886 EUR
Retailer 8€1,386 EUR
Retailer 13€1,509 EUR
Retailer 14€1,553 EUR
Retailer 3€1,608 EUR
Retailer 10€1,608 EUR
Retailer 4€1,763 EUR
Retailer 5€2,179 EUR
Retailer 2€2,297 EUR
Retailer 11€2,531 EUR
Retailer 7€2,845 EUR
Retailer 12€3,016 EUR
MOH London€4,595 EUR
Retailer 6€4,606 EUR

37 data points across 14 retailers

12 retailers€886 EUR to €4,595 EUR

A
Cheapest Retailer
-
€886 EUR
$990 USD
A
Retailer 2
-
€1,386 EUR
$1,549 USD
View
B+
Retailer 3
-
€1,509 EUR
$1,686 USD
View
B+
Retailer 4
-
€1,553 EUR
$1,735 USD
View
Final sale: no returns
Retailer 5
-
€1,608 EUR
$1,797 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
€1,608 EUR
$1,797 USD
View
B+
Retailer 7
-
€1,763 EUR
$1,970 USD
View
B+
Retailer 8
-
€2,297 EUR
£2,021 GBP
View
B
Retailer 9
-
€2,531 EUR
$2,828 USD
View
B
Retailer 10
-
€2,845 EUR
$3,178 USD
View
B
Retailer 11
-
€3,016 EUR
$3,369 USD
View
Most Expensive
B
MOH London
LG451057750 · Nov 1
€4,595 EUR
£4,042 GBP
View
11 more retailers have this diamond
Prices start from €886 EURSave up to €3,709 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
1.80ct Oval
€886 EUR