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1.70ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG573380065

Shape and cutting style on the report: Round brilliant

Certificate IGI LG573380065

Diamond specifications and retailer prices

From $329 NZD
$185 USD
As of November 1, 2026
Save $1,574 NZD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,903 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round 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 LG573380065 or 573380065. Listed at 13 retailers as of November 1, 2026, with prices from $329 to $1,903, a $1,574 spread on the same certified stone. MOH London lists it at $1,903. 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
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG573380065
Dimensions7.68 × 7.63 × 4.74 mm
L/W Ratio1.01
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
7.68 mm7.63 mm1.70 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG573380065
Side View
Table 56.5%Crown 35.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,903 NZD|Low: $315 NZD|High: $1,925 NZD|Avg: $806 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 7$329 NZD
Retailer 10$380 NZD
Retailer 3$407 NZD
Retailer 8$407 NZD
Retailer 6$718 NZD
Retailer 4$724 NZD
Retailer 2$734 NZD
Retailer 9$880 NZD
Retailer 11$1,308 NZD
Retailer 5$1,381 NZD
MOH London$1,903 NZD

42 data points across 11 retailers

13 retailers$329 NZD to $1,903 NZD

A
Cheapest Retailer
-
$329 NZD
$185 USD
A
Retailer 2
-
$380 NZD
$214 USD
View
Retailer 3
-
$407 NZD
$229 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$407 NZD
$229 USD
View
B+
Retailer 5
-
$718 NZD
$404 USD
View
A
Retailer 6
-
$724 NZD
£321 GBP
View
A
Retailer 7
-
$734 NZD
£325 GBP
View
A
Retailer 8
-
$880 NZD
$495 USD
View
B+
Retailer 9
-
$978 NZD
$550 USD
View
B+
Retailer 10
-
$1,308 NZD
$736 USD
View
B
Retailer 11
-
$1,381 NZD
$777 USD
View
B+
Retailer 12
-
$1,404 NZD
$790 USD
View
Most Expensive
B
MOH London
LG573380065 · Nov 2
$1,903 NZD
£843 GBP
View
12 more retailers have this diamond
Prices start from $329 NZDSave up to $1,574 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 Round
$329 NZD