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Oval|Lab Grown|IGI

1.70ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG447099060

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447099060

Diamond specifications and retailer prices

From $1,490 NZD
$840 USD
As of October 31, 2026
Save $8,136 NZD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,626 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 LG447099060 or 447099060. Listed at 11 retailers as of October 29, 2026, with prices from $1,490 to $9,626, a $8,136 spread on the same certified stone. MOH London lists it at $9,626. 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 angle35.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099060
Dimensions9.26 × 6.89 × 4.29 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.26 mm6.89 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099060
Side View
Table 57.5%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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: $9,626 NZD|Low: $1,490 NZD|High: $9,703 NZD|Avg: $4,755 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
October 18, 2026
Retailer 7$1,490 NZD
Retailer 6$2,890 NZD
Retailer 11$3,144 NZD
Retailer 12$3,236 NZD
Retailer 5$3,253 NZD
Retailer 8$3,353 NZD
Retailer 13$3,655 NZD
Retailer 3$4,507 NZD
Retailer 9$5,271 NZD
Retailer 2$5,781 NZD
Retailer 10$6,285 NZD
Retailer 4$9,599 NZD
MOH London$9,626 NZD

13 data points across 13 retailers

11 retailers$1,490 NZD to $9,626 NZD

A
Cheapest Retailer
-
$1,490 NZD
$840 USD
B+
Retailer 2
-
$2,890 NZD
$1,629 USD
View
B+
Retailer 3
-
$3,144 NZD
$1,772 USD
View
B+
Retailer 4
-
$3,236 NZD
$1,824 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,353 NZD
$1,890 USD
View
Retailer 6
-
$3,353 NZD
$1,890 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$3,655 NZD
$2,060 USD
View
B
Retailer 8
-
$5,271 NZD
$2,971 USD
View
B
Retailer 9
-
$5,781 NZD
$3,258 USD
View
B
Retailer 10
-
$6,285 NZD
$3,542 USD
View
Most Expensive
B
MOH London
LG447099060 · Oct 29
$9,626 NZD
£4,272 GBP
View
10 more retailers have this diamond
Prices start from $1,490 NZDSave up to $8,136 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