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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6502517721

Certificate GIA 6502517721

Diamond specifications and retailer prices

From $3,373 AUD
$2,369 USD
As of October 30, 2026
Save $5,498 AUD (62%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,870 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 6502517721. Listed at 23 retailers as of October 30, 2026, with prices from $3,373 to $8,870, a $5,498 spread on the same certified stone. NZ Jewellers lists it at $8,870. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6502517721
Dimensions6.37 × 6.32 × 3.93 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.37 mm6.32 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6502517721
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 30
Current: $8,870 AUD|Low: $3,252 AUD|High: $8,870 AUD|Avg: $5,255 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6$3,353 AUD
Retailer 7$3,548 AUD
Retailer 9$3,992 AUD
Retailer 3$4,509 AUD
Retailer 4$4,683 AUD
Retailer 8$4,754 AUD
Retailer 2$5,216 AUD
Retailer 5$7,105 AUD
NZ Jewellers$8,870 AUD

42 data points across 9 retailers

23 retailers$3,373 AUD to $8,870 AUD

Retailer 1
-
$3,353 AUD
$2,355 USD
Price last confirmed 13 days ago
A
Retailer 2
-
$3,373 AUD
$2,369 USD
View
B+
Retailer 3
-
$3,442 AUD
$2,418 USD
View
B+
Retailer 4
-
$3,548 AUD
$2,492 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,564 AUD
View
B+
Retailer 6
-
$3,787 AUD
$2,660 USD
View
B+
Retailer 7
-
$3,844 AUD
$2,700 USD
View
B+
Retailer 8
-
$3,844 AUD
$2,700 USD
View
B+
Retailer 9
-
$3,895 AUD
$2,736 USD
View
B+
Retailer 10
-
$3,992 AUD
$2,804 USD
View
B
Retailer 11
-
$4,359 AUD
$3,062 USD
View
B
Retailer 12
-
$4,385 AUD
$3,080 USD
View
B
Retailer 13
-
$4,385 AUD
$3,080 USD
View
B
Retailer 14
-
$4,436 AUD
$3,116 USD
View
B
Retailer 15
-
$4,509 AUD
£2,494 GBP
View
B
Retailer 16
-
$4,541 AUD
$3,190 USD
View
B+
Retailer 17
-
$4,683 AUD
€3,133 EUR
View
Retailer 18
-
$4,754 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$4,804 AUD
$3,375 USD
View
Retailer 20
-
$4,926 AUD
$3,460 USD
View
Price last confirmed 8 days ago
B
Retailer 21
-
$5,216 AUD
ZAR 59,186 ZAR
View
B
Retailer 22
-
$7,105 AUD
£3,930 GBP
View
Most Expensive
B
NZ Jewellers
954e9cce-4327-4cdb-a9ff-6c9d33a1f055 · Oct 30
$8,870 AUD
$6,231 USD
View
22 more retailers have this diamond
Prices start from $3,373 AUDSave up to $5,498 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
1.00ct Round
$3,373 AUD