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Oval|Lab Grown|IGI

1.70ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG442069378

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG442069378

Diamond specifications and retailer prices

From $1,668 NZD
$940 USD
As of October 31, 2026
Save $6,942 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,610 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442069378 or 442069378. Listed at 11 retailers as of October 31, 2026, with prices from $1,668 to $8,610, a $6,942 spread on the same certified stone. MOH London lists it at $8,610. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442069378
Dimensions9.25 × 6.85 × 4.22 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.25 mm6.85 mm1.70 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442069378
Side View
Table 57.5%Crown 33.3°Girdle: STK-VTKPavilion 40.9°Culet: NoneDepth 61.6%

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: $8,610 NZD|Low: $1,668 NZD|High: $8,725 NZD|Avg: $4,440 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
November 1, 2026
Retailer 5$1,668 NZD
Retailer 2$2,599 NZD
Retailer 9$2,828 NZD
Retailer 10$2,908 NZD
Retailer 6$3,015 NZD
Retailer 11$3,318 NZD
Retailer 3$4,104 NZD
Retailer 7$4,753 NZD
Retailer 12$5,472 NZD
Retailer 8$5,651 NZD
MOH London$8,610 NZD
Retailer 4$8,633 NZD

18 data points across 12 retailers

11 retailers$1,668 NZD to $8,610 NZD

A
Cheapest Retailer
-
$1,668 NZD
$940 USD
A
Retailer 2
-
$2,599 NZD
$1,465 USD
View
B+
Retailer 3
-
$2,828 NZD
$1,594 USD
View
B+
Retailer 4
-
$2,908 NZD
$1,639 USD
View
Final sale: no returns
Retailer 5
-
$3,015 NZD
$1,699 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$3,015 NZD
$1,699 USD
View
B+
Retailer 7
-
$3,318 NZD
$1,870 USD
View
B
Retailer 8
-
$4,753 NZD
$2,679 USD
View
B
Retailer 9
-
$5,472 NZD
$3,084 USD
View
B
Retailer 10
-
$5,651 NZD
$3,185 USD
View
Most Expensive
B
MOH London
LG442069378 · Nov 1
$8,610 NZD
£3,821 GBP
View
10 more retailers have this diamond
Prices start from $1,668 NZDSave up to $6,942 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
$1,668 NZD