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Radiant|Natural|GIA

1.00ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 6551749682

Certificate GIA 6551749682

Diamond specifications and retailer prices

From $1,581 AUD
As of November 6, 2026
Save $3,598 AUD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,178 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551749682. Listed at 14 retailers as of November 5, 2026, with prices from $1,581 to $5,178, a $3,598 spread on the same certified stone. NZ Jewellers lists it at $5,178. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551749682
Dimensions7.17 × 4.89 × 3.21 mm
L/W Ratio1.47
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint
Top View
7.17 mm4.89 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551749682
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.5%

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 6
Current: $5,178 AUD|Low: $1,581 AUD|High: $5,296 AUD|Avg: $2,550 AUD|-2.2%
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
November 7, 2026
Retailer 6$1,581 AUD
Retailer 12$1,861 AUD
Retailer 10$1,968 AUD
Retailer 9$2,123 AUD
Retailer 5$2,147 AUD
Retailer 13$2,221 AUD
Retailer 4$2,263 AUD
Retailer 7$2,320 AUD
Retailer 2$2,343 AUD
Retailer 3$2,449 AUD
Retailer 8$2,743 AUD
Retailer 11$3,708 AUD
NZ Jewellers$5,178 AUD

27 data points across 13 retailers

14 retailers$1,581 AUD to $5,178 AUD

A
Cheapest Retailer
-
$1,581 AUD
A
Retailer 2
-
$1,861 AUD
View
A
Retailer 3
-
$1,968 AUD
View
A
Retailer 4
-
$2,123 AUD
View
Retailer 5
-
$2,147 AUD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$2,221 AUD
View
A
Retailer 7
-
$2,263 AUD
View
A
Retailer 8
-
$2,320 AUD
View
B+
Retailer 9
-
$2,343 AUD
View
B+
Retailer 10
-
$2,449 AUD
View
Retailer 11
-
$2,617 AUD
View
Price last confirmed 62 days ago
B+
Retailer 12
-
$2,743 AUD
View
B
Retailer 13
-
$3,708 AUD
View
Most Expensive
B
NZ Jewellers
3cb63f75-0e16-4d84-870b-4af904ffe89a · Nov 5
$5,178 AUD
$3,558 USD
View
13 more retailers have this diamond
Prices start from $1,581 AUDSave up to $3,598 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
$1,581 AUD