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Oval|Lab Grown|IGI

1.70ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG445037389

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037389

Diamond specifications and retailer prices

From $1,508 NZD
$850 USD
As of October 29, 2026
Save $6,631 NZD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,139 NZD at MOH London · As of October 27, 2026
View at MOH London

About this 1.7ct lab-grown oval diamond

This 1.7ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037389 or 445037389. Listed at 10 retailers as of October 27, 2026, with prices from $1,508 to $8,139, a $6,631 spread on the same certified stone. MOH London lists it at $8,139. 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

1.70
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037389
Dimensions9.02 × 6.74 × 4.35 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.02 mm6.74 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037389
Side View
Table 59.0%Crown 34.9°Girdle: MED-VTKPavilion 41.3°Culet: NoneDepth 64.5%

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: $8,139 NZD|Low: $1,508 NZD|High: $8,236 NZD|Avg: $4,025 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 25, 2026
Retailer 5$1,508 NZD
Retailer 2$2,454 NZD
Retailer 9$2,669 NZD
Retailer 10$2,747 NZD
Retailer 6$2,846 NZD
Retailer 3$2,948 NZD
Retailer 12$3,903 NZD
Retailer 7$4,494 NZD
Retailer 11$5,165 NZD
Retailer 8$5,334 NZD
Retailer 4$6,370 NZD
MOH London$8,139 NZD

15 data points across 12 retailers

10 retailers$1,508 NZD to $8,139 NZD

A
Cheapest Retailer
-
$1,508 NZD
$850 USD
B+
Retailer 2
-
$2,454 NZD
$1,383 USD
View
B+
Retailer 3
-
$2,669 NZD
$1,504 USD
View
B+
Retailer 4
-
$2,747 NZD
$1,548 USD
View
Final sale: no returns
Retailer 5
-
$2,846 NZD
$1,604 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,846 NZD
$1,604 USD
View
B
Retailer 7
-
$4,494 NZD
$2,533 USD
View
B
Retailer 8
-
$5,165 NZD
$2,911 USD
View
B
Retailer 9
-
$5,334 NZD
$3,006 USD
View
Most Expensive
B
MOH London
LG445037389 · Oct 27
$8,139 NZD
£3,612 GBP
View
9 more retailers have this diamond
Prices start from $1,508 NZDSave up to $6,631 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
1.70ct Oval
$1,508 NZD