CaratHunter
Plans
Oval|Lab Grown|IGI

1.71ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG447002191

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447002191

Diamond specifications and retailer prices

From $950 USD
As of October 29, 2026
Save $3,778 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,728 USD at MOH London · As of October 27, 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 LG447002191 or 447002191. Listed at 10 retailers as of October 27, 2026, with prices from $950 to $4,728, a $3,778 spread on the same certified stone. MOH London lists it at $4,728. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447002191
Dimensions9.28 × 6.68 × 4.17 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
9.28 mm6.68 mm1.71 ctI / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG447002191
Side View
Table 57.0%Crown 35.3°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 62.4%

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 29
Current: $4,728 USD|Low: $950 USD|High: $4,784 USD|Avg: $2,448 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 25, 2026
Retailer 2$950 USD
Retailer 4$1,418 USD
Retailer 6$2,041 USD
Retailer 3$2,326 USD
Retailer 5$2,739 USD
Retailer 7$3,289 USD
MOH London$4,728 USD

11 data points across 7 retailers

10 retailers$950 USD to $4,728 USD

A
Cheapest Retailer
-
$950 USD
B+
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
LG447002191 · Oct 27
$4,728 USD
£3,723 GBP
View
9 more retailers have this diamond
Prices start from $950 USDSave up to $3,778 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