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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6505943659

Certificate GIA 6505943659

Diamond specifications and retailer prices

From $4,528 AUD
As of November 5, 2026
Save $4,713 AUD (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,240 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 6505943659. Listed at 15 retailers as of November 5, 2026, with prices from $4,528 to $9,240, a $4,713 spread on the same certified stone. NZ Jewellers lists it at $9,240. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle44.82°
Pavilion angle31.51°
OriginNatural
Grading LabGIA
CertificateGIA 6505943659
Dimensions6.61 × 5.10 × 3.30 mm
L/W Ratio1.30
Top View
6.61 mm5.10 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6505943659
Side View
Table 70.0%Crown 44.82°GirdlePavilion 31.51°Culet: NDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,488 AUD|Low: $4,528 AUD|High: $8,760 AUD|Avg: $5,822 AUD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8$4,528 AUD
Retailer 6$4,708 AUD
Retailer 2$5,021 AUD
Retailer 1$5,488 AUD
Retailer 9$5,507 AUD
Retailer 7$5,680 AUD
Retailer 3$6,174 AUD
Retailer 4$6,472 AUD
Retailer 5$8,633 AUD

40 data points across 9 retailers

15 retailers$4,528 AUD to $9,240 AUD

B+
Cheapest Retailer
-
$4,528 AUD
B+
Retailer 2
-
$4,708 AUD
View
B+
Retailer 3
-
$5,021 AUD
View
B
Retailer 4
-
$5,094 AUD
View
Retailer 5
-
$5,303 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$5,303 AUD
View
B+
Retailer 7
-
$5,488 AUD
View
B
Retailer 8
-
$5,507 AUD
View
B
Retailer 9
-
$5,515 AUD
View
Retailer 10
-
$5,680 AUD
View
Price last confirmed 30 days ago
B
Retailer 11
-
$6,120 AUD
View
B
Retailer 12
-
$6,174 AUD
View
B
Retailer 13
-
$6,472 AUD
View
B
Retailer 14
-
$8,633 AUD
View
Most Expensive
B
NZ Jewellers
8d68ffc7-03de-4063-a5a4-5e05efd635a3 · Nov 5
$9,240 AUD
$6,349 USD
View
14 more retailers have this diamond
Prices start from $4,528 AUDSave up to $4,713 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.

B+
1.00ct Radiant
$4,528 AUD