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Oval|Lab Grown|IGI

1.71ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG445037391

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037391

Diamond specifications and retailer prices

From $950 USD
As of October 29, 2026
Save $3,797 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,747 USD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037391 or 445037391. Listed at 10 retailers as of October 29, 2026, with prices from $950 to $4,747, a $3,797 spread on the same certified stone. MOH London lists it at $4,747. 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
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037391
Dimensions9.29 × 6.72 × 4.20 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.29 mm6.72 mm1.71 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037391
Side View
Table 58.5%Crown 36.5°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 62.5%

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 29
Current: $4,747 USD|Low: $950 USD|High: $4,784 USD|Avg: $2,202 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 21, 2026
Retailer 4$950 USD
Retailer 2$1,267 USD
Retailer 8$1,378 USD
Retailer 9$1,418 USD
Retailer 5$1,470 USD
Retailer 11$2,041 USD
Retailer 6$2,326 USD
Retailer 10$2,739 USD
Retailer 7$2,754 USD
Retailer 3$3,289 USD
MOH London$4,747 USD

13 data points across 11 retailers

10 retailers$950 USD to $4,747 USD

A
Cheapest Retailer
-
$950 USD
A
Retailer 2
-
$1,267 USD
View
B+
Retailer 3
-
$1,378 USD
View
B+
Retailer 4
-
$1,418 USD
View
Final sale: no returns
Retailer 5
-
$1,470 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,470 USD
View
B
Retailer 7
-
$2,326 USD
View
B
Retailer 8
-
$2,739 USD
View
B
Retailer 9
-
$2,754 USD
View
Most Expensive
B
MOH London
LG445037391 · Oct 29
$4,747 USD
£3,738 GBP
View
9 more retailers have this diamond
Prices start from $950 USDSave up to $3,797 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
$950 USD