CaratHunter
Plans
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 $2,076 NZD
$1,170 USD
As of October 31, 2026
Save $4,123 NZD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,741 NZD 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: $10,269 NZD|Low: $2,076 NZD|High: $10,406 NZD|Avg: $4,992 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3$2,076 NZD
Retailer 5$3,100 NZD
Retailer 8$3,471 NZD
Retailer 6$3,597 NZD
Retailer 9$3,895 NZD
Retailer 2$5,056 NZD
Retailer 7$5,646 NZD
Retailer 4$6,199 NZD
Retailer 1$10,269 NZD

40 data points across 9 retailers

12 retailers$2,076 NZD to $6,199 NZD

B+
Cheapest Retailer
-
$2,076 NZD
$1,170 USD
B
Retailer 2
-
$3,100 NZD
$1,747 USD
View
B
Retailer 3
-
$3,373 NZD
$1,901 USD
View
B
Retailer 4
-
$3,471 NZD
$1,956 USD
View
Final sale: no returns
Retailer 5
-
$3,597 NZD
$2,027 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
$3,597 NZD
$2,027 USD
View
B
Retailer 7
-
$3,895 NZD
$2,195 USD
View
B
Retailer 8
-
$5,056 NZD
£2,244 GBP
View
B
Retailer 9
-
$5,646 NZD
$3,182 USD
View
B
Retailer 10
-
$6,199 NZD
$3,494 USD
View
Most Expensive
NZ Jewellers
56e7f642-8e59-448f-a140-3073ce85b44f · Oct 31
$6,741 NZD
$3,799 USD
View
Price under review
10 more retailers have this diamond
Prices start from $2,076 NZDSave up to $4,123 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.

B+
1.70ct Oval
$2,076 NZD