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Oval|Lab Grown|IGI

1.70ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG445039218

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445039218

Diamond specifications and retailer prices

From $1,196 AUD
$840 USD
As of October 29, 2026
Save $5,523 AUD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,718 AUD 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 LG445039218 or 445039218. Listed at 12 retailers as of October 29, 2026, with prices from $1,196 to $6,718, a $5,523 spread on the same certified stone. MOH London lists it at $6,718. 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 angle36°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039218
Dimensions9.00 × 6.80 × 4.38 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.00 mm6.80 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039218
Side View
Table 59.5%Crown 36°Girdle: STK-THKPavilion 42.2°Culet: NoneDepth 64.4%

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: $6,718 AUD|Low: $1,196 AUD|High: $6,764 AUD|Avg: $3,066 AUD|+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
October 30, 2026
Retailer 8$1,196 AUD
Retailer 7$1,794 AUD
Retailer 12$1,950 AUD
Retailer 13$2,007 AUD
Retailer 3$2,080 AUD
Retailer 9$2,080 AUD
Retailer 14$2,328 AUD
Retailer 2$2,855 AUD
Retailer 5$2,890 AUD
Retailer 10$3,296 AUD
Retailer 4$3,876 AUD
Retailer 11$3,899 AUD
Retailer 6$5,955 AUD
MOH London$6,718 AUD

38 data points across 14 retailers

12 retailers$1,196 AUD to $6,718 AUD

A
Cheapest Retailer
-
$1,196 AUD
$840 USD
B+
Retailer 2
-
$1,794 AUD
$1,260 USD
View
A
Retailer 3
-
$1,950 AUD
$1,370 USD
View
A
Retailer 4
-
$2,007 AUD
$1,410 USD
View
Final sale: no returns
Retailer 5
-
$2,080 AUD
$1,461 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$2,080 AUD
$1,461 USD
View
B+
Retailer 7
-
$2,328 AUD
$1,635 USD
View
B+
Retailer 8
-
$2,855 AUD
£1,579 GBP
View
B+
Retailer 9
-
$3,296 AUD
$2,315 USD
View
B
Retailer 10
-
$3,876 AUD
$2,723 USD
View
B
Retailer 11
-
$3,899 AUD
$2,739 USD
View
Most Expensive
B
MOH London
LG445039218 · Oct 29
$6,718 AUD
£3,716 GBP
View
11 more retailers have this diamond
Prices start from $1,196 AUDSave up to $5,523 AUD

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
$1,196 AUD