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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 €458 EUR
HK$4,000 HKD
As of November 1, 2026
Save €832 EUR (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,932 EUR 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: €608 EUR|Low: €391 EUR|High: €1,439 EUR|Avg: €719 EUR|-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€458 EUR
Retailer 8€503 EUR
Retailer 7€510 EUR
Retailer 6€559 EUR
Retailer 12€563 EUR
Retailer 3€574 EUR
Retailer 1€608 EUR
Retailer 11€725 EUR
Retailer 2€824 EUR
Retailer 9€829 EUR
Retailer 4€894 EUR
Retailer 10€1,290 EUR

30 data points across 12 retailers

13 retailers€458 EUR to €1,290 EUR

A
Cheapest Retailer
-
€458 EUR
HK$4,000 HKD
A
Retailer 2
-
€503 EUR
$562 USD
View
Final sale: no returns
A
Retailer 3
-
€510 EUR
$570 USD
View
B+
Retailer 4
-
€559 EUR
View
Retailer 5
-
€563 EUR
$629 USD
View
Price last confirmed 11 days ago
Retailer 6
-
€574 EUR
SGD 866 SGD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
€608 EUR
£535 GBP
View
B+
Retailer 8
-
€725 EUR
$810 USD
View
Retailer 9
-
€824 EUR
$921 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
€829 EUR
ZAR 14,971 ZAR
View
Retailer 11
-
€894 EUR
A$1,536 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
€1,290 EUR
£1,135 GBP
View
Most Expensive
NZ Jewellers
ff2ff585-a559-4f88-84e8-3ea1b8e960df · Sep 25
€1,932 EUR
$2,158 USD
View
Price under review
12 more retailers have this diamond
Prices start from €458 EURSave up to €832 EUR

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
€458 EUR