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Heart|Natural|GIA

0.65ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5553839376

Certificate GIA 5553839376

Diamond specifications and retailer prices

From $512 USD
HK$4,000 HKD
As of November 1, 2026
Save $929 USD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,158 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.65ct natural heart diamond

This 0.65ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553839376. Listed at 13 retailers as of October 29, 2026, with a 182% 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

0.65
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553839376
Dimensions5.36 × 6.23 × 3.44 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
5.36 mm6.23 mm0.65 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553839376
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.2%

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 1
Current: $680 USD|Low: $437 USD|High: $1,608 USD|Avg: $803 USD|-5.4%
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 2, 2026
Retailer 5$512 USD
Retailer 8$562 USD
Retailer 7$570 USD
Retailer 6$625 USD
Retailer 12$629 USD
Retailer 3$641 USD
Retailer 1$680 USD
Retailer 11$810 USD
Retailer 2$921 USD
Retailer 9$927 USD
Retailer 4$999 USD
Retailer 10$1,441 USD

30 data points across 12 retailers

13 retailers$512 USD to $1,441 USD

A
Cheapest Retailer
-
$512 USD
HK$4,000 HKD
A
Retailer 2
-
$562 USD
View
Final sale: no returns
A
Retailer 3
-
$570 USD
View
B+
Retailer 4
-
$625 USD
€595 EUR
View
Retailer 5
-
$629 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$641 USD
SGD 866 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$680 USD
£535 GBP
View
B+
Retailer 8
-
$810 USD
View
Retailer 9
-
$921 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$927 USD
ZAR 14,971 ZAR
View
Retailer 11
-
$999 USD
A$1,536 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$1,441 USD
£1,135 GBP
View
Most Expensive
NZ Jewellers
ff2ff585-a559-4f88-84e8-3ea1b8e960df · Sep 25
$2,158 USD
View
Price under review
12 more retailers have this diamond
Prices start from $512 USDSave up to $929 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
0.65ct Heart
$512 USD