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Marquise|Natural|GIA

1.70ct M SI2 Marquise Natural Diamond

VG • M/SI2 • GIA 1559568817

Certificate GIA 1559568817

Diamond specifications and retailer prices

From $4,305 AUD
As of November 4, 2026
Save $2,891 AUD (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,196 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559568817. Listed at 7 retailers as of November 4, 2026, with prices from $4,305 to $7,196, a $2,891 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,196. 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
M
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.29°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 1559568817
Dimensions11.21 × 6.05 × 3.97 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.21 mm6.05 mm1.70 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559568817
Side View
Table 59.0%Crown 40.29°Girdle: MED-VTKPavilion 40.57°Culet: NoneDepth 65.6%

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 4
Current: $5,541 AUD|Low: $3,461 AUD|High: $7,936 AUD|Avg: $5,325 AUD|-9.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 6, 2026
Retailer 7$3,461 AUD
Retailer 4$4,305 AUD
Retailer 3$4,315 AUD
Retailer 5$5,261 AUD
Retailer 2$5,309 AUD
Retailer 6$5,363 AUD
Retailer 1$5,541 AUD
Wholesale Diamonds Direct$7,196 AUD

39 data points across 8 retailers

7 retailers$4,305 AUD to $7,196 AUD

A
Cheapest Retailer
-
$4,305 AUD
A
Retailer 2
-
$4,315 AUD
View
B+
Retailer 3
-
$5,261 AUD
View
B+
Retailer 4
-
$5,309 AUD
View
B+
Retailer 5
-
$5,363 AUD
View
B+
Retailer 6
-
$5,541 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
387037349 · Nov 6
$7,196 AUD
$4,944 USD
View
6 more retailers have this diamond
Prices start from $4,305 AUDSave up to $2,891 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
$4,305 AUD