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Marquise|Natural|HRD

1.70ct H SI1 Marquise Natural Diamond

ID • H/SI1 • HRD 260000210605

Certificate HRD 260000210605

Diamond specifications and retailer prices

From $11,893 AUD
₹793,810 INR
As of November 2, 2026
Save $10,023 AUD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $21,916 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000210605. Listed at 15 retailers as of October 30, 2026, with prices from $11,893 to $21,916, a $10,023 spread on the same certified stone. NZ Jewellers lists it at $21,916. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000210605
Dimensions11.58 × 6.08 × 3.70 mm
L/W Ratio1.90
Top View
11.58 mm6.08 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000210605
Side View
Table 59.0%CrownGirdle: THIPavilionCulet: NoneDepth 60.8%

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: $21,916 AUD|Low: $11,893 AUD|High: $21,916 AUD|Avg: $15,535 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
Retailer 14
November 2, 2026
Retailer 2$11,893 AUD
Retailer 11$12,760 AUD
Retailer 10$13,313 AUD
Retailer 12$13,464 AUD
Retailer 13$14,072 AUD
Retailer 8$14,369 AUD
Retailer 6$14,514 AUD
Retailer 14$14,514 AUD
Retailer 7$15,099 AUD
Retailer 4$15,724 AUD
Retailer 3$15,966 AUD
Retailer 5$18,143 AUD
Retailer 9$20,537 AUD
NZ Jewellers$21,916 AUD

24 data points across 14 retailers

15 retailers$11,893 AUD to $21,916 AUD

B+
Cheapest Retailer
-
$11,893 AUD
₹793,810 INR
B+
Retailer 2
-
$12,760 AUD
$8,942 USD
View
B+
Retailer 3
-
$13,313 AUD
$9,330 USD
View
B+
Retailer 4
-
$13,464 AUD
$9,436 USD
View
B+
Retailer 5
-
$14,072 AUD
$9,862 USD
View
B+
Retailer 6
-
$14,369 AUD
£7,929 GBP
View
B+
Retailer 7
-
$14,514 AUD
$10,172 USD
View
B
Retailer 8
-
$14,514 AUD
$10,172 USD
View
Final sale: no returns
B
Retailer 9
-
$15,099 AUD
€10,078 EUR
View
B+
Retailer 10
-
$15,724 AUD
$11,020 USD
View
B+
Retailer 11
-
$15,966 AUD
$11,189 USD
View
B
Retailer 12
-
$16,091 AUD
$11,277 USD
View
B
Retailer 13
-
$18,143 AUD
$12,715 USD
View
B
Retailer 14
-
$20,537 AUD
£11,333 GBP
View
Most Expensive
B
NZ Jewellers
e3c97117-85d7-49aa-857d-97f9825d88c3 · Oct 30
$21,916 AUD
$15,359 USD
View
14 more retailers have this diamond
Prices start from $11,893 AUDSave up to $10,023 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
$11,893 AUD