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Heart|Natural|GIA

1.00ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 1428335258

Certificate GIA 1428335258

Diamond specifications and retailer prices

From $1,220 USD
As of November 6, 2026
Save $3,005 USD (71%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,225 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded H 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 1428335258. Listed at 18 retailers as of November 5, 2026, with prices from $1,220 to $4,225, a $3,005 spread on the same certified stone. NZ Jewellers lists it at $4,225. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428335258
Dimensions6.50 × 6.77 × 3.52 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural
Top View
6.50 mm6.77 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1428335258
Side View
Table 53.0%CrownGirdlePavilionCulet: NoneDepth 52.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,220 USD|Low: $1,220 USD|High: $3,070 USD|Avg: $1,881 USD|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$1,220 USD
Retailer 8$1,254 USD
Retailer 2$1,590 USD
Retailer 10$1,598 USD
Retailer 3$1,703 USD
Retailer 9$1,732 USD
Retailer 5$1,738 USD
Retailer 6$1,922 USD
Retailer 4$2,352 USD
Retailer 7$3,026 USD

31 data points across 10 retailers

18 retailers$1,220 USD to $4,225 USD

A
Cheapest Retailer
-
$1,220 USD
A
Retailer 2
-
$1,254 USD
View
B+
Retailer 3
-
$1,590 USD
View
B+
Retailer 4
-
$1,598 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,703 USD
View
B+
Retailer 6
-
$1,714 USD
View
Retailer 7
-
$1,732 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,732 USD
View
B+
Retailer 9
-
$1,732 USD
View
B+
Retailer 10
-
$1,738 USD
View
B+
Retailer 11
-
$1,812 USD
View
B+
Retailer 12
-
$1,868 USD
View
B+
Retailer 13
-
$1,922 USD
View
B+
Retailer 14
-
$1,999 USD
View
B
Retailer 15
-
$2,352 USD
View
B
Retailer 16
-
$3,026 USD
View
C
Retailer 17
-
$4,148 USD
View
Most Expensive
C
NZ Jewellers
c73e2843-b85a-4889-a4d7-6315b2e1a56e · Nov 5
$4,225 USD
View
17 more retailers have this diamond
Prices start from $1,220 USDSave up to $3,005 USD

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
$1,220 USD