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Oval|Lab Grown|IGI

1.71ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG492136784

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG492136784

Diamond specifications and retailer prices

From €958 EUR
$1,070 USD
As of October 31, 2026
Save €3,896 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,854 EUR at MOH London · As of October 29, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136784 or 492136784. Listed at 10 retailers as of October 29, 2026, with prices from €958 to €4,854, a €3,896 spread on the same certified stone. MOH London lists it at €4,854. 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
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136784
Dimensions9.72 × 6.66 × 4.18 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.72 mm6.66 mm1.71 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136784
Side View
Table 56.0%Crown 33.5°Girdle: MED-THKPavilion 41.7°Culet: NoneDepth 62.8%

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: Oct 31
Current: €4,854 EUR|Low: €958 EUR|High: €4,893 EUR|Avg: €2,337 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4€958 EUR
Retailer 3€1,457 EUR
Retailer 9€1,641 EUR
Retailer 5€1,691 EUR
Retailer 7€1,844 EUR
Retailer 8€2,273 EUR
Retailer 6€2,657 EUR
Retailer 2€2,914 EUR
MOH London€4,854 EUR

13 data points across 9 retailers

10 retailers€958 EUR to €4,854 EUR

A
Cheapest Retailer
-
€958 EUR
$1,070 USD
B+
Retailer 2
-
€1,457 EUR
$1,628 USD
View
B+
Retailer 3
-
€1,585 EUR
$1,771 USD
View
B+
Retailer 4
-
€1,691 EUR
$1,889 USD
View
Retailer 5
-
€1,691 EUR
$1,889 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
€1,844 EUR
$2,060 USD
View
B
Retailer 7
-
€2,657 EUR
$2,968 USD
View
B
Retailer 8
-
€2,914 EUR
$3,256 USD
View
B
Retailer 9
-
€3,169 EUR
$3,540 USD
View
Most Expensive
B
MOH London
LG492136784 · Oct 29
€4,854 EUR
£4,270 GBP
View
9 more retailers have this diamond
Prices start from €958 EURSave up to €3,896 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
€958 EUR