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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2566053993

Certificate GIA 2566053993

Diamond specifications and retailer prices

From $2,205 AUD
HK$12,100 HKD
As of October 31, 2026
Save $3,925 AUD (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,130 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 very-good cut grade and certified by GIA 2566053993. Listed at 22 retailers as of October 30, 2026, with prices from $2,205 to $6,130, a $3,925 spread on the same certified stone. NZ Jewellers lists it at $6,130. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566053993
Dimensions6.17 × 6.24 × 4.01 mm
L/W Ratio1.01
Top View
6.17 mm6.24 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566053993
Side View
Table 59.0%Crown 37.5°Girdle: THN-THKPavilion 40.8°Culet: NoneDepth 64.7%

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: $6,130 AUD|Low: $2,187 AUD|High: $6,371 AUD|Avg: $3,357 AUD|-3.8%
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
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 15$2,205 AUD
Retailer 13$2,236 AUD
Retailer 21$2,612 AUD
Retailer 8$2,649 AUD
Retailer 19$2,830 AUD
Retailer 9$2,888 AUD
Retailer 4$2,933 AUD
Retailer 7$2,933 AUD
Retailer 3$2,975 AUD
Retailer 14$3,068 AUD
Retailer 12$3,072 AUD
Retailer 5$3,129 AUD
Retailer 2$3,198 AUD
Retailer 6$3,217 AUD
Retailer 11$3,382 AUD
Retailer 17$3,604 AUD
Retailer 18$4,006 AUD
Retailer 16$4,015 AUD
Retailer 10$4,272 AUD
Retailer 20$5,164 AUD
NZ Jewellers$6,130 AUD

18 data points across 21 retailers

22 retailers$2,205 AUD to $6,130 AUD

A
Cheapest Retailer
-
$2,205 AUD
HK$12,100 HKD
A
Retailer 2
-
$2,236 AUD
₹149,597 INR
View
A
Retailer 3
-
$2,649 AUD
$1,861 USD
View
Retailer 4
-
$2,804 AUD
$1,970 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$2,830 AUD
£1,565 GBP
View
A
Retailer 6
-
$2,888 AUD
$2,029 USD
View
A
Retailer 7
-
$2,933 AUD
$2,060 USD
View
A
Retailer 8
-
$2,933 AUD
$2,060 USD
View
B+
Retailer 9
-
$2,975 AUD
$2,090 USD
View
A
Retailer 10
-
$3,068 AUD
$2,155 USD
View
A
Retailer 11
-
$3,072 AUD
SGD 2,916 SGD
View
A
Retailer 12
-
$3,129 AUD
$2,198 USD
View
B+
Retailer 13
-
$3,198 AUD
£1,769 GBP
View
A
Retailer 14
-
$3,217 AUD
$2,260 USD
View
B+
Retailer 15
-
$3,382 AUD
$2,376 USD
View
B+
Retailer 16
-
$3,604 AUD
ZAR 40,896 ZAR
View
Retailer 17
-
$3,828 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
$4,006 AUD
€2,680 EUR
View
B+
Retailer 19
-
$4,015 AUD
$2,820 USD
View
B+
Retailer 20
-
$4,272 AUD
$3,001 USD
View
B
Retailer 21
-
$5,164 AUD
£2,856 GBP
View
Most Expensive
B
NZ Jewellers
d7dd0661-fee1-4ae8-a928-035d6a473d34 · Oct 30
$6,130 AUD
$4,306 USD
View
21 more retailers have this diamond
Prices start from $2,205 AUDSave up to $3,925 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
$2,205 AUD