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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2544928323

Certificate GIA 2544928323

Diamond specifications and retailer prices

From $3,400 AUD
As of November 5, 2026
Save $4,435 AUD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,835 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2544928323. Listed at 23 retailers as of November 5, 2026, with prices from $3,400 to $7,835, a $4,435 spread on the same certified stone. NZ Jewellers lists it at $7,835. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2544928323
Dimensions6.29 × 6.34 × 3.98 mm
L/W Ratio1.01
Top View
6.29 mm6.34 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544928323
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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 5
Current: $7,835 AUD|Low: $3,400 AUD|High: $8,204 AUD|Avg: $4,821 AUD|-4.5%
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
Retailer 22
November 6, 2026
Retailer 22$3,400 AUD
Retailer 12$3,618 AUD
Retailer 8$3,648 AUD
Retailer 16$3,736 AUD
Retailer 19$3,761 AUD
Retailer 18$3,768 AUD
Retailer 15$3,794 AUD
Retailer 6$4,074 AUD
Retailer 5$4,211 AUD
Retailer 10$4,231 AUD
Retailer 2$4,303 AUD
Retailer 3$4,443 AUD
Retailer 9$4,443 AUD
Retailer 13$4,585 AUD
Retailer 20$4,701 AUD
Retailer 7$4,731 AUD
Retailer 17$4,925 AUD
Retailer 4$5,331 AUD
Retailer 14$5,337 AUD
Retailer 21$5,488 AUD
Retailer 11$7,694 AUD
NZ Jewellers$7,835 AUD

21 data points across 22 retailers

23 retailers$3,400 AUD to $7,835 AUD

A
Cheapest Retailer
-
$3,400 AUD
A
Retailer 2
-
$3,618 AUD
View
A
Retailer 3
-
$3,648 AUD
View
A
Retailer 4
-
$3,736 AUD
View
A
Retailer 5
-
$3,761 AUD
View
Final sale: no returns
A
Retailer 6
-
$3,768 AUD
View
A
Retailer 7
-
$3,794 AUD
View
A
Retailer 8
-
$4,074 AUD
View
A
Retailer 9
-
$4,211 AUD
View
A
Retailer 10
-
$4,231 AUD
View
A
Retailer 11
-
$4,303 AUD
View
A
Retailer 12
-
$4,443 AUD
View
A
Retailer 13
-
$4,443 AUD
View
B+
Retailer 14
-
$4,585 AUD
View
B+
Retailer 15
-
$4,701 AUD
View
B+
Retailer 16
-
$4,731 AUD
View
B+
Retailer 17
-
$4,925 AUD
View
Retailer 18
-
$5,140 AUD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$5,331 AUD
View
Retailer 20
-
$5,337 AUD
View
Price last confirmed 14 days ago
B+
Retailer 21
-
$5,488 AUD
View
B
Retailer 22
-
$7,694 AUD
View
Most Expensive
B
NZ Jewellers
c04f7c52-73fe-46cf-977c-12a3468ca840 · Nov 5
$7,835 AUD
$5,485 USD
View
22 more retailers have this diamond
Prices start from $3,400 AUDSave up to $4,435 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
$3,400 AUD