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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 1553596973

Certificate GIA 1553596973

Diamond specifications and retailer prices

From $2,253 NZD
As of November 6, 2026
Save $2,287 NZD (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,229 NZD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553596973. Listed at 16 retailers as of November 1, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.83°
Pavilion angle38.79°
OriginNatural
Grading LabGIA
CertificateGIA 1553596973
Dimensions6.97 × 6.08 × 3.84 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle, Etch Channel
Top View
6.97 mm6.08 mm1.00 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553596973
Side View
Table 64.0%Crown 37.83°Girdle: Very ThickPavilion 38.79°Culet: NoneDepth 55.1%

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: $2,253 NZD|Low: $1,822 NZD|High: $4,735 NZD|Avg: $2,991 NZD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$2,253 NZD
Retailer 5$2,264 NZD
Retailer 6$2,401 NZD
Retailer 3$2,554 NZD
Retailer 10$2,594 NZD
Retailer 2$2,599 NZD
Retailer 8$2,686 NZD
Retailer 4$2,691 NZD
Retailer 9$2,764 NZD
Retailer 7$3,388 NZD
Retailer 11$4,540 NZD

35 data points across 11 retailers

16 retailers$2,253 NZD to $4,540 NZD

A
Cheapest Retailer
-
$2,253 NZD
Final sale: no returns
A
Retailer 2
-
$2,264 NZD
View
A
Retailer 3
-
$2,401 NZD
View
Retailer 4
-
$2,554 NZD
View
Price last confirmed 8 days ago
Retailer 5
-
$2,554 NZD
View
Price last confirmed 41 days ago
Retailer 6
-
$2,554 NZD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$2,594 NZD
View
A
Retailer 8
-
$2,599 NZD
View
A
Retailer 9
-
$2,686 NZD
View
A
Retailer 10
-
$2,691 NZD
View
A
Retailer 11
-
$2,764 NZD
View
Retailer 12
-
$2,948 NZD
View
Price last confirmed 61 days ago
Retailer 13
-
$2,948 NZD
View
Price last confirmed 43 days ago
B+
Retailer 14
-
$3,388 NZD
View
B+
Retailer 15
-
$4,540 NZD
View
Most Expensive
NZ Jewellers
d70c30ee-10c2-461f-a977-d0efbba75e88 · Sep 26
$6,229 NZD
$3,453 USD
View
Price last confirmed 41 days ago
15 more retailers have this diamond
Prices start from $2,253 NZDSave up to $2,287 NZD

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
$2,253 NZD