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Oval|Lab Grown|IGI

1.70ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG447000394

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447000394

Diamond specifications and retailer prices

From $1,490 NZD
$840 USD
As of October 31, 2026
Save $6,883 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,373 NZD at MOH London · As of October 29, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447000394 or 447000394. Listed at 12 retailers as of October 29, 2026, with prices from $1,490 to $8,373, a $6,883 spread on the same certified stone. MOH London lists it at $8,373. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000394
Dimensions9.20 × 6.76 × 4.33 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.20 mm6.76 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447000394
Side View
Table 57.0%Crown 33.7°Girdle: MED-THKPavilion 42.1°Culet: NoneDepth 64.1%

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: $8,373 NZD|Low: $1,490 NZD|High: $8,430 NZD|Avg: $3,815 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
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 8$1,490 NZD
Retailer 7$2,236 NZD
Retailer 12$2,431 NZD
Retailer 13$2,502 NZD
Retailer 3$2,592 NZD
Retailer 9$2,592 NZD
Retailer 14$2,901 NZD
Retailer 2$3,547 NZD
Retailer 5$3,602 NZD
Retailer 10$4,108 NZD
Retailer 4$4,831 NZD
Retailer 11$4,860 NZD
Retailer 6$7,423 NZD
MOH London$8,373 NZD

38 data points across 14 retailers

12 retailers$1,490 NZD to $8,373 NZD

A
Cheapest Retailer
-
$1,490 NZD
$840 USD
B+
Retailer 2
-
$2,236 NZD
$1,260 USD
View
A
Retailer 3
-
$2,431 NZD
$1,370 USD
View
A
Retailer 4
-
$2,502 NZD
$1,410 USD
View
Final sale: no returns
Retailer 5
-
$2,592 NZD
$1,461 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$2,592 NZD
$1,461 USD
View
B+
Retailer 7
-
$2,901 NZD
$1,635 USD
View
B+
Retailer 8
-
$3,547 NZD
£1,574 GBP
View
B+
Retailer 9
-
$4,108 NZD
$2,315 USD
View
B
Retailer 10
-
$4,831 NZD
$2,723 USD
View
B
Retailer 11
-
$4,860 NZD
$2,739 USD
View
Most Expensive
B
MOH London
LG447000394 · Oct 29
$8,373 NZD
£3,716 GBP
View
11 more retailers have this diamond
Prices start from $1,490 NZDSave up to $6,883 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
$1,490 NZD