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Oval|Lab Grown|IGI

1.71ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445036765

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445036765

Diamond specifications and retailer prices

From $850 USD
As of October 31, 2026
Save $3,872 USD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,722 USD 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445036765 or 445036765. Listed at 12 retailers as of October 31, 2026, with prices from $850 to $4,722, a $3,872 spread on the same certified stone. MOH London lists it at $4,722. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036765
Dimensions9.31 × 6.79 × 4.29 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.31 mm6.79 mm1.71 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445036765
Side View
Table 60.0%Crown 35.4°Girdle: MED-STKPavilion 41.8°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: Oct 31
Current: $4,722 USD|Low: $850 USD|High: $4,784 USD|Avg: $2,163 USD
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 8$850 USD
Retailer 7$1,267 USD
Retailer 12$1,378 USD
Retailer 13$1,418 USD
Retailer 9$1,470 USD
Retailer 14$1,470 USD
Retailer 3$1,640 USD
Retailer 2$2,011 USD
Retailer 5$2,041 USD
Retailer 10$2,326 USD
Retailer 4$2,739 USD
Retailer 11$2,754 USD
Retailer 6$4,208 USD
MOH London$4,722 USD

38 data points across 14 retailers

12 retailers$850 USD to $4,722 USD

A
Cheapest Retailer
-
$850 USD
A
Retailer 2
-
$1,267 USD
View
A
Retailer 3
-
$1,378 USD
View
A
Retailer 4
-
$1,418 USD
View
Final sale: no returns
Retailer 5
-
$1,470 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$1,470 USD
View
B+
Retailer 7
-
$1,640 USD
View
B+
Retailer 8
-
$2,011 USD
£1,583 GBP
View
B+
Retailer 9
-
$2,326 USD
View
B
Retailer 10
-
$2,739 USD
View
B
Retailer 11
-
$2,754 USD
View
Most Expensive
B
MOH London
LG445036765 · Nov 1
$4,722 USD
£3,718 GBP
View
11 more retailers have this diamond
Prices start from $850 USDSave up to $3,872 USD

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
$850 USD