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Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552615471

Certificate GIA 6552615471

Diamond specifications and retailer prices

From $7,773 AUD
$5,460 USD
As of November 1, 2026
Save $9,356 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,129 AUD at NZ Jewellers · As of October 30, 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 6552615471. Listed at 19 retailers as of October 30, 2026, with prices from $7,773 to $17,129, a $9,356 spread on the same certified stone. NZ Jewellers lists it at $17,129. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552615471
Dimensions7.40 × 7.45 × 4.65 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Cloud, Needle
Top View
7.40 mm7.45 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552615471
Side View
Table 57.0%Crown 35.5°Girdle: Med. - Sli. ThickPavilion 40.8°Culet: NoneDepth 62.6%

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: $17,129 AUD|Low: $7,773 AUD|High: $17,129 AUD|Avg: $10,108 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 4$7,773 AUD
Retailer 7$8,092 AUD
Retailer 9$8,203 AUD
Retailer 6$8,564 AUD
Retailer 17$8,564 AUD
Retailer 8$8,620 AUD
Retailer 10$9,135 AUD
Retailer 15$9,278 AUD
Retailer 16$9,421 AUD
Retailer 11$9,756 AUD
Retailer 5$9,820 AUD
Retailer 3$9,940 AUD
Retailer 2$10,533 AUD
Retailer 18$10,705 AUD
Retailer 12$11,142 AUD
Retailer 14$12,583 AUD
Retailer 13$14,272 AUD
NZ Jewellers$17,129 AUD

32 data points across 18 retailers

19 retailers$7,773 AUD to $17,129 AUD

A
Cheapest Retailer
-
$7,773 AUD
$5,460 USD
A
Retailer 2
-
$8,092 AUD
$5,684 USD
View
A
Retailer 3
-
$8,203 AUD
$5,762 USD
View
B+
Retailer 4
-
$8,564 AUD
$6,016 USD
View
Final sale: no returns
B+
Retailer 5
-
$8,564 AUD
$6,016 USD
View
B+
Retailer 6
-
$8,620 AUD
$6,055 USD
View
B+
Retailer 7
-
$9,135 AUD
$6,417 USD
View
B+
Retailer 8
-
$9,278 AUD
$6,517 USD
View
B+
Retailer 9
-
$9,421 AUD
$6,618 USD
View
B+
Retailer 10
-
$9,756 AUD
£5,396 GBP
View
B+
Retailer 11
-
$9,820 AUD
$6,898 USD
View
Retailer 12
-
$9,940 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$10,533 AUD
£5,826 GBP
View
B+
Retailer 14
-
$10,705 AUD
$7,520 USD
View
B
Retailer 15
-
$11,142 AUD
€7,454 EUR
View
Retailer 16
-
$11,286 AUD
$7,928 USD
View
Price last confirmed 18 days ago
B
Retailer 17
-
$12,583 AUD
ZAR 142,792 ZAR
View
B
Retailer 18
-
$14,272 AUD
£7,894 GBP
View
Most Expensive
B
NZ Jewellers
39c87343-d3a0-47e9-a982-21b63d342af4 · Oct 30
$17,129 AUD
$12,032 USD
View
18 more retailers have this diamond
Prices start from $7,773 AUDSave up to $9,356 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
$7,773 AUD