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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2566009790

Certificate GIA 2566009790

Diamond specifications and retailer prices

From $3,838 AUD
As of November 5, 2026
Save $3,992 AUD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,830 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566009790. Listed at 16 retailers as of November 5, 2026, with prices from $3,838 to $7,830, a $3,992 spread on the same certified stone. NZ Jewellers lists it at $7,830. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566009790
Dimensions6.62 × 5.00 × 3.43 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Etch Channel, Feather, Crystal, Indented Natural, Natural
Top View
6.62 mm5.00 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566009790
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

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: $7,830 AUD|Low: $3,838 AUD|High: $7,830 AUD|Avg: $5,015 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
November 7, 2026
Retailer 6$3,838 AUD
Retailer 3$4,026 AUD
Retailer 7$4,148 AUD
Retailer 9$4,359 AUD
Retailer 4$4,373 AUD
Retailer 12$4,494 AUD
Retailer 15$4,494 AUD
Retailer 8$4,649 AUD
Retailer 2$4,667 AUD
Retailer 10$4,929 AUD
Retailer 5$5,049 AUD
Retailer 14$5,186 AUD
Retailer 11$5,485 AUD
Retailer 13$7,494 AUD
NZ Jewellers$7,830 AUD

27 data points across 15 retailers

16 retailers$3,838 AUD to $7,830 AUD

A
Cheapest Retailer
-
$3,838 AUD
A
Retailer 2
-
$4,026 AUD
View
B+
Retailer 3
-
$4,148 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,359 AUD
View
B+
Retailer 5
-
$4,373 AUD
View
B+
Retailer 6
-
$4,494 AUD
View
Retailer 7
-
$4,494 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,649 AUD
View
B+
Retailer 9
-
$4,667 AUD
View
B+
Retailer 10
-
$4,929 AUD
View
Retailer 11
-
$4,980 AUD
View
Price last confirmed 34 days ago
B+
Retailer 12
-
$5,049 AUD
View
B+
Retailer 13
-
$5,186 AUD
View
B+
Retailer 14
-
$5,485 AUD
View
B
Retailer 15
-
$7,494 AUD
View
Most Expensive
B
NZ Jewellers
12aeb250-18fa-429f-871f-bff01b197b4e · Nov 5
$7,830 AUD
$5,380 USD
View
15 more retailers have this diamond
Prices start from $3,838 AUDSave up to $3,992 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 Radiant
$3,838 AUD