Heart|Natural|GIA

1.00ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 3545958579

Certificate GIA 3545958579

Diamond specifications and retailer prices

From $1,779 USD
As of November 6, 2026
Save $2,334 USD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,909 USD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545958579. Listed at 21 retailers as of November 2, 2026, with a 131% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545958579
Dimensions6.24 × 6.77 × 4.02 mm
L/W Ratio1.08
Top View
6.24 mm6.77 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545958579
Side View
Table 63.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.3%

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: $1,874 USD|Low: $1,766 USD|High: $4,635 USD|Avg: $2,676 USD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$1,779 USD
Retailer 1$1,874 USD
Retailer 8$2,092 USD
Retailer 3$2,167 USD
Retailer 12$2,221 USD
Retailer 4$2,478 USD
Retailer 2$2,487 USD
Retailer 6$2,552 USD
Retailer 7$2,866 USD
Retailer 5$2,914 USD
Retailer 9$4,113 USD
Retailer 11$4,616 USD

29 data points across 12 retailers

21 retailers$1,779 USD to $4,113 USD

A
Cheapest Retailer
-
$1,779 USD
A
Retailer 2
-
$1,874 USD
View
A
Retailer 3
-
$2,092 USD
View
B+
Retailer 4
-
$2,167 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,221 USD
View
B+
Retailer 6
-
$2,241 USD
View
B+
Retailer 7
-
$2,245 USD
View
Retailer 8
-
$2,348 USD
View
Price last confirmed 21 days ago
Retailer 9
-
$2,348 USD
View
Price last confirmed 19 days ago
B+
Retailer 10
-
$2,410 USD
View
Retailer 11
-
$2,457 USD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
$2,478 USD
View
B+
Retailer 13
-
$2,487 USD
View
B+
Retailer 14
-
$2,552 USD
View
Retailer 15
-
$2,709 USD
View
Price last confirmed 18 days ago
B+
Retailer 16
-
$2,866 USD
View
B+
Retailer 17
-
$2,914 USD
View
Retailer 18
-
$2,941 USD
View
Price last confirmed 30 days ago
B
Retailer 19
-
$4,113 USD
View
Retailer 20
-
$4,616 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
6213d67b-5b17-4436-b1a0-fae91a189144 · Oct 18
$4,909 USD
View
Price last confirmed 19 days ago
20 more retailers have this diamond
Prices start from $1,779 USDSave up to $2,334 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
$1,779 USD