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Oval|Lab Grown|IGI

1.70ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG447000418

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447000418

Diamond specifications and retailer prices

From $1,686 NZD
$950 USD
As of October 29, 2026
Save $6,654 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,340 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447000418 or 447000418. Listed at 11 retailers as of October 27, 2026, with prices from $1,686 to $8,340, a $6,654 spread on the same certified stone. MOH London lists it at $8,340. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000418
Dimensions9.09 × 6.84 × 4.33 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.09 mm6.84 mm1.70 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447000418
Side View
Table 57.5%Crown 35.8°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.3%

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 29
Current: $8,340 NZD|Low: $1,686 NZD|High: $8,441 NZD|Avg: $3,776 NZD|-0.9%
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 30, 2026
Retailer 7$1,686 NZD
Retailer 6$2,236 NZD
Retailer 11$2,431 NZD
Retailer 12$2,502 NZD
Retailer 8$2,592 NZD
Retailer 13$2,592 NZD
Retailer 4$3,602 NZD
Retailer 2$3,867 NZD
Retailer 9$4,108 NZD
Retailer 3$4,831 NZD
Retailer 10$4,860 NZD
Retailer 5$5,802 NZD
MOH London$8,340 NZD

37 data points across 13 retailers

11 retailers$1,686 NZD to $8,340 NZD

A
Cheapest Retailer
-
$1,686 NZD
$950 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 18 days ago
B+
Retailer 6
-
$2,592 NZD
$1,461 USD
View
B+
Retailer 7
-
$3,867 NZD
£1,716 GBP
View
B
Retailer 8
-
$4,108 NZD
$2,315 USD
View
B
Retailer 9
-
$4,831 NZD
$2,723 USD
View
B
Retailer 10
-
$4,860 NZD
$2,739 USD
View
Most Expensive
B
MOH London
LG447000418 · Oct 27
$8,340 NZD
£3,701 GBP
View
10 more retailers have this diamond
Prices start from $1,686 NZDSave up to $6,654 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
$1,686 NZD