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Marquise|Natural|GIA

1.70ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 3545582536

Certificate GIA 3545582536

Diamond specifications and retailer prices

From $13,914 AUD
$9,774 USD
As of November 2, 2026
Save $5,091 AUD (27%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $19,005 AUD at Jared · As of November 2, 2026
View at Jared

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 stated by the retailer rather than the lab and certified by GIA 3545582536. Listed at 7 retailers as of November 2, 2026, with prices from $13,914 to $19,005, a $5,091 spread on the same certified stone. Jared lists it at $19,005. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.26°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 3545582536
Dimensions12.47 × 5.99 × 3.91 mm
L/W Ratio2.08
Top View
12.47 mm5.99 mm1.70 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545582536
Side View
Table 56.0%Crown 40.26°Girdle: MED-VTKPavilion 40.11°Culet: NoneDepth 65.2%

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: Nov 2
Current: $19,005 AUD|Low: $13,741 AUD|High: $19,005 AUD|Avg: $16,842 AUD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$13,914 AUD
Retailer 7$15,064 AUD
Retailer 3$15,227 AUD
Retailer 2$18,344 AUD
Retailer 5$18,393 AUD
Retailer 6$18,393 AUD
Jared$19,005 AUD

29 data points across 7 retailers

7 retailers$13,914 AUD to $19,005 AUD

B+
Cheapest Retailer
-
$13,914 AUD
$9,774 USD
B
Retailer 2
-
$14,830 AUD
View
B
Retailer 3
-
$15,064 AUD
$10,581 USD
View
B
Retailer 4
-
$18,344 AUD
£10,146 GBP
View
B
Retailer 5
-
$18,393 AUD
$12,920 USD
View
B
Retailer 6
-
$18,393 AUD
$12,920 USD
View
Most Expensive
B
Jared
158334912 · Nov 2
$19,005 AUD
$13,350 USD
View
6 more retailers have this diamond
Prices start from $13,914 AUDSave up to $5,091 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 Marquise
$13,914 AUD