Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556677005

Certificate GIA 7556677005

Diamond specifications and retailer prices

From $6,806 AUD
$4,781 USD
As of November 1, 2026
Save $5,888 AUD (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $15,020 AUD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7556677005. Listed at 22 retailers as of November 1, 2026, with a 87% 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

1.60
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7556677005
Dimensions7.50 × 7.46 × 4.61 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle, Feather, Natural
Top View
7.50 mm7.46 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7556677005
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,349 AUD|Low: $6,744 AUD|High: $13,390 AUD|Avg: $8,993 AUD|-2.0%
Retailer 1
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 3$6,806 AUD
Retailer 4$7,203 AUD
Retailer 10$7,310 AUD
Retailer 2$7,715 AUD
Retailer 1$8,349 AUD
Retailer 12$8,727 AUD
Retailer 13$8,727 AUD
Retailer 6$8,743 AUD
Retailer 5$8,833 AUD
Retailer 7$9,374 AUD
Retailer 11$9,501 AUD
Retailer 14$9,737 AUD
Retailer 9$10,586 AUD
Retailer 8$12,694 AUD

40 data points across 14 retailers

22 retailers$6,806 AUD to $12,694 AUD

A
Cheapest Retailer
-
$6,806 AUD
$4,781 USD
A
Retailer 2
-
$7,203 AUD
$5,060 USD
View
Final sale: no returns
A
Retailer 3
-
$7,310 AUD
$5,135 USD
View
A
Retailer 4
-
$7,715 AUD
$5,419 USD
View
Retailer 5
-
$7,971 AUD
$5,599 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$7,971 AUD
$5,599 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$7,971 AUD
$5,599 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$8,136 AUD
$5,715 USD
View
Price last confirmed 45 days ago
A
Retailer 9
-
$8,349 AUD
£4,618 GBP
View
B+
Retailer 10
-
$8,727 AUD
$6,130 USD
View
B+
Retailer 11
-
$8,727 AUD
$6,130 USD
View
Retailer 12
-
$8,743 AUD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$8,833 AUD
$6,204 USD
View
Retailer 14
-
$9,196 AUD
$6,460 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
$9,374 AUD
€6,271 EUR
View
Retailer 16
-
$9,387 AUD
$6,594 USD
View
Price last confirmed 41 days ago
Retailer 17
-
$9,501 AUD
$6,674 USD
View
Price last confirmed 10 days ago
B+
Retailer 18
-
$9,737 AUD
$6,840 USD
View
B+
Retailer 19
-
$10,586 AUD
ZAR 120,128 ZAR
View
B
Retailer 20
-
$12,694 AUD
£7,021 GBP
View
Retailer 21
-
$14,716 AUD
$10,337 USD
View
Price last confirmed 30 days ago
Most Expensive
NZ Jewellers
c95d298a-f4aa-4ac8-9058-92dd055e0e43 · Sep 19
$15,020 AUD
$10,551 USD
View
Price last confirmed 43 days ago
21 more retailers have this diamond
Prices start from $6,806 AUDSave up to $5,888 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.

A
1.60ct Round
$6,806 AUD