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Oval|Lab Grown|IGI

1.71ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG451058603

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451058603

Diamond specifications and retailer prices

From €752 EUR
$840 USD
As of October 31, 2026
Save €3,130 EUR (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,882 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct lab-grown oval diamond

This 1.71ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451058603 or 451058603. Listed at 10 retailers as of October 31, 2026, with prices from €752 to €3,882, a €3,130 spread on the same certified stone. MOH London lists it at €3,882. 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

1.71
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451058603
Dimensions9.22 × 6.78 × 4.28 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.22 mm6.78 mm1.71 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451058603
Side View
Table 59.5%Crown 35.8°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 63.1%

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: €3,882 EUR|Low: €752 EUR|High: €3,929 EUR|Avg: €1,830 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4€752 EUR
Retailer 2€1,042 EUR
Retailer 8€1,133 EUR
Retailer 9€1,165 EUR
Retailer 5€1,208 EUR
Retailer 11€1,725 EUR
Retailer 6€1,919 EUR
Retailer 7€2,265 EUR
Retailer 10€2,381 EUR
Retailer 3€2,704 EUR
MOH London€3,882 EUR

15 data points across 11 retailers

10 retailers€752 EUR to €3,882 EUR

A
Cheapest Retailer
-
€752 EUR
$840 USD
A
Retailer 2
-
€1,042 EUR
$1,164 USD
View
B+
Retailer 3
-
€1,133 EUR
$1,266 USD
View
B+
Retailer 4
-
€1,165 EUR
$1,302 USD
View
Final sale: no returns
Retailer 5
-
€1,208 EUR
$1,350 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
€1,208 EUR
$1,350 USD
View
B
Retailer 7
-
€1,919 EUR
$2,144 USD
View
B
Retailer 8
-
€2,265 EUR
$2,530 USD
View
B
Retailer 9
-
€2,381 EUR
$2,660 USD
View
Most Expensive
B
MOH London
LG451058603 · Nov 1
€3,882 EUR
£3,415 GBP
View
9 more retailers have this diamond
Prices start from €752 EURSave up to €3,130 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
1.71ct Oval
€752 EUR