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Oval|Lab Grown|IGI

1.71ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG447000609

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447000609

Diamond specifications and retailer prices

From $1,686 NZD
$950 USD
As of October 31, 2026
Save $6,737 NZD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,423 NZD 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 LG447000609 or 447000609. Listed at 9 retailers as of October 29, 2026, with prices from $1,686 to $8,423, a $6,737 spread on the same certified stone. MOH London lists it at $8,423. 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
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000609
Dimensions9.04 × 6.78 × 4.32 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.04 mm6.78 mm1.71 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG447000609
Side View
Table 57.5%Crown 37.1°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.7%

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: $8,423 NZD|Low: $1,677 NZD|High: $8,488 NZD|Avg: $3,845 NZD|+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 29, 2026
Retailer 11$1,677 NZD
Retailer 4$1,686 NZD
Retailer 2$2,248 NZD
Retailer 8$2,445 NZD
Retailer 5$2,608 NZD
Retailer 10$3,621 NZD
Retailer 6$4,127 NZD
Retailer 9$4,860 NZD
Retailer 7$4,886 NZD
Retailer 3$5,836 NZD
MOH London$8,423 NZD

15 data points across 11 retailers

9 retailers$1,686 NZD to $8,423 NZD

A
Cheapest Retailer
-
$1,686 NZD
$950 USD
B+
Retailer 2
-
$2,248 NZD
$1,267 USD
View
B+
Retailer 3
-
$2,445 NZD
$1,378 USD
View
Retailer 4
-
$2,608 NZD
$1,470 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$2,608 NZD
$1,470 USD
View
B
Retailer 6
-
$4,127 NZD
$2,326 USD
View
B
Retailer 7
-
$4,860 NZD
$2,739 USD
View
B
Retailer 8
-
$4,886 NZD
$2,754 USD
View
Most Expensive
B
MOH London
LG447000609 · Oct 29
$8,423 NZD
£3,738 GBP
View
8 more retailers have this diamond
Prices start from $1,686 NZDSave up to $6,737 NZD

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
$1,686 NZD