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Marquise|Natural|IGI

1.70ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 743559063

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743559063

Diamond specifications and retailer prices

From $6,581 AUD
₹440,289 INR
As of November 2, 2026
Save $6,991 AUD (52%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,573 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 743559063. Listed at 15 retailers as of October 30, 2026, with prices from $6,581 to $13,573, a $6,991 spread on the same certified stone. NZ Jewellers lists it at $13,573. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle41.2°
Pavilion angle37.3°
OriginNatural
Grading LabIGI
CertificateIGI 743559063
Dimensions11.97 × 6.30 × 3.70 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
11.97 mm6.30 mm1.70 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateIGI 743559063
Side View
Table 62.0%Crown 41.2°Girdle: MED-THKPavilion 37.3°Culet: NoneDepth 58.7%

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: Nov 2
Current: $13,573 AUD|Low: $6,294 AUD|High: $13,686 AUD|Avg: $8,547 AUD|-0.8%
NZ Jewellers
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
Retailer 15
November 2, 2026
Retailer 2$6,581 AUD
Retailer 3$6,976 AUD
Retailer 5$7,024 AUD
Retailer 11$7,323 AUD
Retailer 15$7,491 AUD
Retailer 6$7,640 AUD
Retailer 8$7,915 AUD
Retailer 12$8,115 AUD
Retailer 13$8,115 AUD
Retailer 14$8,115 AUD
Retailer 7$8,214 AUD
Retailer 9$9,182 AUD
Retailer 4$9,363 AUD
Retailer 10$12,925 AUD
NZ Jewellers$13,573 AUD

27 data points across 15 retailers

15 retailers$6,581 AUD to $13,573 AUD

A
Cheapest Retailer
-
$6,581 AUD
₹440,289 INR
A
Retailer 2
-
$6,976 AUD
$4,900 USD
View
A
Retailer 3
-
$7,024 AUD
$4,934 USD
View
B+
Retailer 4
-
$7,323 AUD
$5,144 USD
View
B+
Retailer 5
-
$7,491 AUD
$5,262 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,640 AUD
$5,367 USD
View
B+
Retailer 7
-
$7,915 AUD
£4,378 GBP
View
B+
Retailer 8
-
$8,115 AUD
$5,700 USD
View
B+
Retailer 9
-
$8,115 AUD
$5,700 USD
View
B+
Retailer 10
-
$8,115 AUD
$5,700 USD
View
B+
Retailer 11
-
$8,214 AUD
$5,770 USD
View
B+
Retailer 12
-
$9,182 AUD
€6,143 EUR
View
B+
Retailer 13
-
$9,363 AUD
$6,577 USD
View
B
Retailer 14
-
$12,925 AUD
£7,149 GBP
View
Most Expensive
B
NZ Jewellers
c86ab5dd-c8c7-47a5-85e8-02e36dba8c9c · Oct 30
$13,573 AUD
$9,534 USD
View
14 more retailers have this diamond
Prices start from $6,581 AUDSave up to $6,991 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 Marquise
$6,581 AUD