Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6545357664

Certificate GIA 6545357664

Diamond specifications and retailer prices

From $9,676 AUD
$6,797 USD
As of November 1, 2026
Save $10,990 AUD (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $20,666 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545357664. Listed at 25 retailers as of October 30, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545357664
Dimensions7.62 × 7.57 × 4.74 mm
L/W Ratio1.01
Top View
7.62 mm7.57 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545357664
Side View
Table 55.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.4%

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 1
Current: $14,924 AUD|Low: $9,471 AUD|High: $18,206 AUD|Avg: $13,711 AUD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8$9,676 AUD
Retailer 7$10,332 AUD
Retailer 6$10,334 AUD
Retailer 3$11,435 AUD
Retailer 4$13,443 AUD
Retailer 1$14,924 AUD
Retailer 2$17,221 AUD
Retailer 5$18,125 AUD

39 data points across 8 retailers

25 retailers$9,676 AUD to $20,666 AUD

B+
Cheapest Retailer
-
$9,676 AUD
$6,797 USD
B+
Retailer 2
-
$10,332 AUD
$7,258 USD
View
Final sale: no returns
B+
Retailer 3
-
$10,334 AUD
$7,259 USD
View
B+
Retailer 4
-
$11,007 AUD
$7,732 USD
View
Retailer 5
-
$11,195 AUD
$7,864 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$11,195 AUD
$7,864 USD
View
Price last confirmed 45 days ago
Retailer 7
-
$11,195 AUD
$7,864 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$11,367 AUD
$7,985 USD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$11,435 AUD
£6,325 GBP
View
B
Retailer 10
-
$11,873 AUD
$8,340 USD
View
B
Retailer 11
-
$11,873 AUD
$8,340 USD
View
B+
Retailer 12
-
$12,257 AUD
$8,610 USD
View
Retailer 13
-
$12,916 AUD
$9,073 USD
View
Price last confirmed 23 days ago
Retailer 14
-
$12,916 AUD
$9,073 USD
View
Price last confirmed 41 days ago
Retailer 15
-
$12,916 AUD
$9,073 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$12,916 AUD
$9,073 USD
View
B+
Retailer 17
-
$13,443 AUD
€8,993 EUR
View
Retailer 18
-
$13,610 AUD
$9,560 USD
View
Price last confirmed 17 days ago
B
Retailer 19
-
$14,924 AUD
£8,254 GBP
View
B
Retailer 20
-
$17,221 AUD
£9,525 GBP
View
B
Retailer 21
-
$18,125 AUD
£10,025 GBP
View
Retailer 22
-
$20,666 AUD
$14,517 USD
View
Price last confirmed 43 days ago
B
Retailer 23
-
$20,666 AUD
$14,517 USD
View
Retailer 24
-
$20,666 AUD
$14,517 USD
View
Price last confirmed 36 days ago
Most Expensive
NZ Jewellers
9dce53ff-da98-468c-a682-945f5f03bd09 · Oct 20
$20,666 AUD
$14,517 USD
View
Price last confirmed 12 days ago
24 more retailers have this diamond
Prices start from $9,676 AUDSave up to $10,990 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 Round
$9,676 AUD