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Oval|Lab Grown|IGI

1.70ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG506191341

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG506191341

Diamond specifications and retailer prices

From $1,666 AUD
$1,170 USD
As of October 31, 2026
Save $3,308 AUD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,408 AUD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506191341 or 506191341. Listed at 12 retailers as of October 31, 2026, with a 199% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506191341
Dimensions9.26 × 6.46 × 4.24 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.26 mm6.46 mm1.70 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG506191341
Side View
Table 61.5%Crown 37°Girdle: STK-VTKPavilion 41.3°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,239 AUD|Low: $1,666 AUD|High: $8,349 AUD|Avg: $3,994 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3$1,666 AUD
Retailer 5$2,487 AUD
Retailer 8$2,785 AUD
Retailer 6$2,886 AUD
Retailer 9$3,125 AUD
Retailer 2$4,057 AUD
Retailer 7$4,530 AUD
Retailer 4$4,974 AUD
Retailer 1$8,239 AUD

41 data points across 9 retailers

12 retailers$1,666 AUD to $4,974 AUD

B+
Cheapest Retailer
-
$1,666 AUD
$1,170 USD
B
Retailer 2
-
$2,487 AUD
$1,747 USD
View
B
Retailer 3
-
$2,706 AUD
$1,901 USD
View
B
Retailer 4
-
$2,785 AUD
$1,956 USD
View
Final sale: no returns
Retailer 5
-
$2,886 AUD
$2,027 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$2,886 AUD
$2,027 USD
View
B
Retailer 7
-
$3,125 AUD
$2,195 USD
View
B
Retailer 8
-
$4,057 AUD
£2,244 GBP
View
B
Retailer 9
-
$4,530 AUD
$3,182 USD
View
B
Retailer 10
-
$4,974 AUD
$3,494 USD
View
Most Expensive
NZ Jewellers
56e7f642-8e59-448f-a140-3073ce85b44f · Oct 31
$5,408 AUD
$3,799 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,666 AUDSave up to $3,308 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.

B+
1.70ct Oval
$1,666 AUD