Heart|Natural|GIA

1.00ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 5316818821

Certificate GIA 5316818821

Diamond specifications and retailer prices

From $972 USD
As of November 6, 2026
Save $2,193 USD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,165 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 J 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 5316818821. Listed at 12 retailers as of November 5, 2026, with prices from $972 to $3,165, a $2,193 spread on the same certified stone. NZ Jewellers lists it at $3,165. 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5316818821
Dimensions5.75 × 6.77 × 4.21 mm
L/W Ratio1.18
Top View
5.75 mm6.77 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5316818821
Side View
Table 59.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 62.1%

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: $3,165 USD|Low: $972 USD|High: $3,165 USD|Avg: $1,641 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$972 USD
Retailer 2$1,059 USD
Retailer 10$1,198 USD
Retailer 8$1,298 USD
Retailer 9$1,347 USD
Retailer 3$1,353 USD
Retailer 4$1,481 USD
Retailer 7$1,497 USD
Retailer 5$2,369 USD
NZ Jewellers$3,165 USD

37 data points across 10 retailers

12 retailers$972 USD to $3,165 USD

A
Cheapest Retailer
-
$972 USD
A
Retailer 2
-
$1,059 USD
View
B+
Retailer 3
-
$1,198 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,214 USD
View
B+
Retailer 5
-
$1,298 USD
View
B+
Retailer 6
-
$1,347 USD
View
B+
Retailer 7
-
$1,353 USD
View
B+
Retailer 8
-
$1,458 USD
View
B+
Retailer 9
-
$1,481 USD
View
B+
Retailer 10
-
$1,497 USD
View
B
Retailer 11
-
$2,369 USD
View
Most Expensive
B
NZ Jewellers
5c2adc8f-68a6-44c7-b33f-9f01ab030d19 · Nov 5
$3,165 USD
View
11 more retailers have this diamond
Prices start from $972 USDSave up to $2,193 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
$972 USD