Round|Natural|GIA

1.07ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555159203

Certificate GIA 6555159203

Diamond specifications and retailer prices

From $3,591 AUD
$2,523 USD
As of October 31, 2026
Save $1,903 AUD (35%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,153 AUD at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

About this 1.07ct natural round diamond

This 1.07ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555159203. Listed at 13 retailers as of October 31, 2026, with a 53% 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

1.07
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555159203
Dimensions6.52 × 6.56 × 4.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.52 mm6.56 mm1.07 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555159203
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

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: Oct 31
Current: $5,441 AUD|Low: $3,378 AUD|High: $5,569 AUD|Avg: $4,662 AUD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4$3,657 AUD
Retailer 3$3,716 AUD
Retailer 5$4,239 AUD
Retailer 6$4,239 AUD
Retailer 2$5,133 AUD
Retailer 7$5,428 AUD
Retailer 1$5,441 AUD
Retailer 8$5,569 AUD

39 data points across 8 retailers

13 retailers$3,591 AUD to $5,494 AUD

A
Cheapest Retailer
-
$3,591 AUD
$2,523 USD
A
Retailer 2
-
$3,657 AUD
$2,569 USD
View
A
Retailer 3
-
$3,689 AUD
$2,591 USD
View
B+
Retailer 4
-
$3,716 AUD
$2,610 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,916 AUD
View
B+
Retailer 6
-
$4,331 AUD
CA$4,225 CAD
View
B+
Retailer 7
-
$4,604 AUD
$3,234 USD
View
B+
Retailer 8
-
$4,604 AUD
$3,234 USD
View
Retailer 9
-
$4,891 AUD
$3,436 USD
View
Price last confirmed 56 days ago
B+
Retailer 10
-
$5,133 AUD
€3,434 EUR
View
B+
Retailer 11
-
$5,441 AUD
£3,009 GBP
View
B
Retailer 12
-
$5,494 AUD
$3,859 USD
View
Most Expensive
NZ Jewellers
0692d3a2-a0e8-48ac-a332-aeaddfa4bec0 · Sep 1
$8,153 AUD
$5,727 USD
View
Price last confirmed 61 days ago
12 more retailers have this diamond
Prices start from $3,591 AUDSave up to $1,903 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
1.07ct Round
$3,591 AUD