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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7536277818

Certificate GIA 7536277818

Diamond specifications and retailer prices

From €479 EUR
As of November 6, 2026
Save €165 EUR (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €644 EUR at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter 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 7536277818. Listed at 4 retailers as of November 6, 2026, with prices from €479 to €644, a €165 spread on the same certified stone. 77 Diamonds lists it at €644. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7536277818
Dimensions4.98 × 5.75 × 3.16 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
4.98 mm5.75 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7536277818
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €644 EUR|Low: €414 EUR|High: €654 EUR|Avg: €531 EUR|+4.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5€459 EUR
Retailer 2€479 EUR
Retailer 4€514 EUR
Retailer 3€582 EUR
77 Diamonds€644 EUR

34 data points across 5 retailers

4 retailers€479 EUR to €644 EUR

A
Cheapest Retailer
-
€479 EUR
Final sale: no returns
Retailer 2
-
€514 EUR
View
Price last confirmed 13 days ago
Retailer 3
-
€582 EUR
View
Price last confirmed 14 days ago
Most Expensive
B+
77 Diamonds
HSCPZHY4HKVJ · Nov 6
€644 EUR
£566 GBP
View
3 more retailers have this diamond
Prices start from €479 EURSave up to €165 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
0.51ct Heart
€479 EUR