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Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5543427044

Certificate GIA 5543427044

Diamond specifications and retailer prices

From $10,925 AUD
$7,674 USD
As of October 31, 2026
Save $9,608 AUD (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $20,533 AUD at NZ Jewellers · As of October 30, 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 5543427044. Listed at 21 retailers as of October 30, 2026, with prices from $10,925 to $20,533, a $9,608 spread on the same certified stone. NZ Jewellers lists it at $20,533. 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 angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5543427044
Dimensions7.55 × 7.61 × 4.74 mm
L/W Ratio1.01
Top View
7.55 mm7.61 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543427044
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $20,533 AUD|Low: $10,784 AUD|High: $20,533 AUD|Avg: $14,725 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
November 2, 2026
Retailer 9$10,925 AUD
Retailer 7$11,833 AUD
Retailer 3$12,320 AUD
Retailer 11$13,133 AUD
Retailer 10$13,346 AUD
Retailer 2$13,373 AUD
Retailer 8$13,551 AUD
Retailer 5$15,263 AUD
Retailer 12$15,399 AUD
Retailer 4$16,215 AUD
Retailer 6$19,240 AUD
NZ Jewellers$20,533 AUD

42 data points across 12 retailers

21 retailers$10,925 AUD to $20,533 AUD

B+
Cheapest Retailer
-
$10,925 AUD
$7,674 USD
B+
Retailer 2
-
$11,182 AUD
$7,855 USD
View
B+
Retailer 3
-
$11,523 AUD
View
B+
Retailer 4
-
$11,833 AUD
$8,312 USD
View
Final sale: no returns
B+
Retailer 5
-
$11,881 AUD
$8,345 USD
View
B
Retailer 6
-
$12,025 AUD
CA$11,732 CAD
View
B
Retailer 7
-
$13,133 AUD
$9,225 USD
View
B
Retailer 8
-
$13,346 AUD
$9,375 USD
View
B+
Retailer 9
-
$13,373 AUD
£7,397 GBP
View
B
Retailer 10
-
$13,551 AUD
$9,519 USD
View
B
Retailer 11
-
$13,689 AUD
$9,616 USD
View
B
Retailer 12
-
$14,179 AUD
$9,960 USD
View
B
Retailer 13
-
$14,549 AUD
$10,220 USD
View
B
Retailer 14
-
$14,549 AUD
$10,220 USD
View
B
Retailer 15
-
$15,033 AUD
$10,560 USD
View
B
Retailer 16
-
$15,263 AUD
€10,211 EUR
View
B
Retailer 17
-
$15,399 AUD
$10,817 USD
View
B
Retailer 18
-
$15,741 AUD
$11,057 USD
View
Retailer 19
-
$16,215 AUD
$11,390 USD
View
Price last confirmed 9 days ago
B
Retailer 20
-
$19,240 AUD
£10,642 GBP
View
Most Expensive
B
NZ Jewellers
b5acfbc1-1425-43fb-b114-7514002729f1 · Oct 30
$20,533 AUD
$14,423 USD
View
20 more retailers have this diamond
Prices start from $10,925 AUDSave up to $9,608 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
$10,925 AUD