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Oval|Lab Grown|IGI

1.70ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445038856

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445038856

Diamond specifications and retailer prices

From $1,490 NZD
$840 USD
As of October 31, 2026
Save $6,838 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,328 NZD at MOH London · As of November 1, 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 LG445038856 or 445038856. Listed at 12 retailers as of October 31, 2026, with prices from $1,490 to $8,328, a $6,838 spread on the same certified stone. MOH London lists it at $8,328. 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 angle32°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038856
Dimensions9.38 × 6.80 × 4.28 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.38 mm6.80 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445038856
Side View
Table 56.5%Crown 32°Girdle: MED-STKPavilion 42.1°Culet: NoneDepth 62.9%

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: $8,328 NZD|Low: $1,490 NZD|High: $8,441 NZD|Avg: $3,760 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 10$1,490 NZD
Retailer 9$2,236 NZD
Retailer 14$2,431 NZD
Retailer 15$2,502 NZD
Retailer 3$2,592 NZD
Retailer 11$2,592 NZD
Retailer 8$2,901 NZD
Retailer 6$3,034 NZD
Retailer 2$3,547 NZD
Retailer 5$3,602 NZD
Retailer 12$4,108 NZD
Retailer 4$4,831 NZD
Retailer 13$4,860 NZD
Retailer 7$7,423 NZD
MOH London$8,328 NZD

38 data points across 15 retailers

12 retailers$1,490 NZD to $8,328 NZD

A
Cheapest Retailer
-
$1,490 NZD
$840 USD
A
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
LG445038856 · Nov 1
$8,328 NZD
£3,696 GBP
View
11 more retailers have this diamond
Prices start from $1,490 NZDSave up to $6,838 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