CaratHunter
Plans
Heart|Natural|GIA

0.65ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5553839376

Certificate GIA 5553839376

Diamond specifications and retailer prices

From €456 EUR
HK$4,000 HKD
As of November 1, 2026
Save €829 EUR (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,924 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
Colour
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: €606 EUR|Low: €390 EUR|High: €1,434 EUR|Avg: €716 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€456 EUR
Retailer 8€501 EUR
Retailer 7€508 EUR
Retailer 6€557 EUR
Retailer 12€561 EUR
Retailer 3€571 EUR
Retailer 1€606 EUR
Retailer 11€722 EUR
Retailer 2€821 EUR
Retailer 9€826 EUR
Retailer 4€890 EUR
Retailer 10€1,285 EUR

30 data points across 12 retailers

13 retailers€456 EUR to €1,285 EUR

A
Cheapest Retailer
-
€456 EUR
HK$4,000 HKD
A
Retailer 2
-
€501 EUR
$562 USD
View
Final sale: no returns
A
Retailer 3
-
€508 EUR
$570 USD
View
B+
Retailer 4
-
€557 EUR
View
Retailer 5
-
€561 EUR
$629 USD
View
Price last confirmed 11 days ago
Retailer 6
-
€571 EUR
SGD 866 SGD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
€606 EUR
£535 GBP
View
B+
Retailer 8
-
€722 EUR
$810 USD
View
Retailer 9
-
€821 EUR
$921 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
€826 EUR
ZAR 14,971 ZAR
View
Retailer 11
-
€890 EUR
A$1,536 AUD
View
Price last confirmed 30 days ago
B
Retailer 12
-
€1,285 EUR
£1,135 GBP
View
Most Expensive
NZ Jewellers
ff2ff585-a559-4f88-84e8-3ea1b8e960df · Sep 25
€1,924 EUR
$2,158 USD
View
Price under review
12 more retailers have this diamond
Prices start from €456 EURSave up to €829 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
€456 EUR