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Heart|Natural|GIA

1.00ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2547731109

Certificate GIA 2547731109

Diamond specifications and retailer prices

From $1,575 AUD
As of November 4, 2026
Save $1,051 AUD (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,626 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547731109. Listed at 10 retailers as of November 4, 2026, with prices from $1,575 to $2,626, a $1,051 spread on the same certified stone. Wholesale Diamonds Direct lists it at $2,626. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.8°
Pavilion angle38.05°
OriginNatural
Grading LabGIA
CertificateGIA 2547731109
Dimensions5.90 × 6.94 × 4.06 mm
L/W Ratio1.18
Top View
5.90 mm6.94 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547731109
Side View
Table 58.0%Crown 36.8°Girdle: MED-THKPavilion 38.05°Culet: NoneDepth 58.6%

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 4
Current: $1,774 AUD|Low: $1,575 AUD|High: $2,700 AUD|Avg: $1,902 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$1,575 AUD
Retailer 8$1,674 AUD
Retailer 7$1,694 AUD
Retailer 4$1,703 AUD
Retailer 6$1,714 AUD
Retailer 1$1,774 AUD
Retailer 5$1,939 AUD
Retailer 9$1,959 AUD
Retailer 2$1,978 AUD
Wholesale Diamonds Direct$2,626 AUD

39 data points across 10 retailers

10 retailers$1,575 AUD to $2,626 AUD

A
Cheapest Retailer
-
$1,575 AUD
A
Retailer 2
-
$1,674 AUD
View
A
Retailer 3
-
$1,694 AUD
View
A
Retailer 4
-
$1,703 AUD
View
A
Retailer 5
-
$1,714 AUD
View
A
Retailer 6
-
$1,774 AUD
View
A
Retailer 7
-
$1,939 AUD
View
A
Retailer 8
-
$1,959 AUD
View
A
Retailer 9
-
$1,978 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
488122460 · Nov 6
$2,626 AUD
$1,804 USD
View
9 more retailers have this diamond
Prices start from $1,575 AUDSave up to $1,051 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 Heart
$1,575 AUD