Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6525804276

Certificate GIA 6525804276

Diamond specifications and retailer prices

From €469 EUR
As of November 1, 2026
Save €240 EUR (34%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,601 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded F 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 6525804276. Listed at 16 retailers as of October 31, 2026, with a 51% 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

0.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6525804276
Dimensions4.76 × 5.49 × 3.34 mm
L/W Ratio1.15
Top View
4.76 mm5.49 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6525804276
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,601 EUR|Low: €376 EUR|High: €1,601 EUR|Avg: €703 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 10€379 EUR
Retailer 2€469 EUR
Retailer 4€471 EUR
Retailer 5€511 EUR
Retailer 3€550 EUR
Retailer 14€550 EUR
Retailer 6€589 EUR
Retailer 8€626 EUR
Retailer 11€629 EUR
Retailer 12€640 EUR
Retailer 15€685 EUR
Retailer 7€768 EUR
Retailer 9€788 EUR
Retailer 13€1,180 EUR
NZ Jewellers€1,601 EUR

29 data points across 15 retailers

16 retailers€469 EUR to €709 EUR

Retailer 1
-
€379 EUR
Price last confirmed 8 days ago
B+
Retailer 2
-
€469 EUR
View
Retailer 3
-
€511 EUR
View
Price last confirmed 9 days ago
Retailer 4
-
€550 EUR
View
Price last confirmed 9 days ago
Retailer 5
-
€550 EUR
View
Price last confirmed 9 days ago
B
Retailer 6
-
€589 EUR
View
Retailer 7
-
€589 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€626 EUR
View
Retailer 9
-
€629 EUR
View
Price last confirmed 8 days ago
Retailer 10
-
€640 EUR
View
Price last confirmed 8 days ago
Retailer 11
-
€685 EUR
View
Price last confirmed 5 days ago
B
Retailer 12
-
€709 EUR
View
Retailer 13
-
€768 EUR
View
Price last confirmed 34 days ago
Retailer 14
-
€788 EUR
View
Price last confirmed 8 days ago
Retailer 15
-
€1,180 EUR
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
83a05a61-9849-4b5b-bd93-f7104d6a2321 · Oct 30
€1,601 EUR
$1,788 USD
View
Price under review
15 more retailers have this diamond
Prices start from €469 EURSave up to €240 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.

B+
0.51ct Heart
€469 EUR