CaratHunter
Plans
Marquise|Natural|GIA

1.70ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 6552320320

Certificate GIA 6552320320

Diamond specifications and retailer prices

From $13,032 AUD
$9,133 USD
As of October 31, 2026
Save $8,904 AUD (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,410 AUD at NZ Jewellers · As of September 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 stated by the retailer rather than the lab and certified by GIA 6552320320. Listed at 12 retailers as of October 31, 2026, with a 68% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552320320
Dimensions11.37 × 6.17 × 3.92 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Top View
11.37 mm6.17 mm1.70 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552320320
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.5%

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: $23,410 AUD|Low: $12,971 AUD|High: $23,410 AUD|Avg: $16,657 AUD
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
November 2, 2026
Retailer 5$13,032 AUD
Retailer 12$13,155 AUD
Retailer 3$14,046 AUD
Retailer 11$15,216 AUD
Retailer 9$15,255 AUD
Retailer 2$15,450 AUD
Retailer 7$16,383 AUD
Retailer 6$17,381 AUD
Retailer 13$17,558 AUD
Retailer 8$17,691 AUD
Retailer 4$18,481 AUD
Retailer 10$21,936 AUD
NZ Jewellers$23,410 AUD

20 data points across 13 retailers

12 retailers$13,032 AUD to $21,936 AUD

B+
Cheapest Retailer
-
$13,032 AUD
$9,133 USD
B+
Retailer 2
-
$13,155 AUD
$9,219 USD
View
B
Retailer 3
-
$15,216 AUD
$10,664 USD
View
B+
Retailer 4
-
$15,255 AUD
£8,418 GBP
View
B
Retailer 5
-
$15,450 AUD
$10,828 USD
View
B
Retailer 6
-
$16,383 AUD
£9,040 GBP
View
B
Retailer 7
-
$17,381 AUD
$12,181 USD
View
B
Retailer 8
-
$17,558 AUD
$12,305 USD
View
B
Retailer 9
-
$17,691 AUD
€11,808 EUR
View
Retailer 10
-
$18,481 AUD
$12,952 USD
View
Price last confirmed 28 days ago
B
Retailer 11
-
$21,936 AUD
£12,105 GBP
View
Most Expensive
NZ Jewellers
389c05c9-4eba-40f4-8b7d-6a35ec25cfc3 · Sep 30
$23,410 AUD
$16,406 USD
View
Price last confirmed 33 days ago
11 more retailers have this diamond
Prices start from $13,032 AUDSave up to $8,904 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
$13,032 AUD