Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7531577715

Certificate GIA 7531577715

Diamond specifications and retailer prices

From €495 EUR
As of November 6, 2026
Save €745 EUR (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,240 EUR at MOH London · As of November 2, 2026
View at MOH London

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 7531577715. Listed at 15 retailers as of November 2, 2026, with prices from €495 to €1,240, a €745 spread on the same certified stone. MOH London lists it at €1,240. 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 7531577715
Dimensions4.90 × 5.47 × 3.14 mm
L/W Ratio1.12
Key to symbols
Feather, Cloud
Top View
4.90 mm5.47 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7531577715
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.4%

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 6
Current: €1,240 EUR|Low: €396 EUR|High: €1,255 EUR|Avg: €681 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9€398 EUR
Retailer 11€495 EUR
Retailer 10€508 EUR
Retailer 3€579 EUR
Retailer 7€579 EUR
Retailer 2€653 EUR
Retailer 6€657 EUR
Retailer 8€673 EUR
Retailer 4€708 EUR
Retailer 12€807 EUR
Retailer 5€828 EUR
MOH London€1,240 EUR

36 data points across 12 retailers

15 retailers€495 EUR to €1,240 EUR

Retailer 1
-
€398 EUR
Price last confirmed 15 days ago
Retailer 2
-
€441 EUR
View
Price last confirmed 15 days ago
A
Retailer 3
-
€495 EUR
View
Final sale: no returns
A
Retailer 4
-
€508 EUR
View
Retailer 5
-
€537 EUR
View
Price last confirmed 45 days ago
B+
Retailer 6
-
€579 EUR
View
Retailer 7
-
€620 EUR
View
Price last confirmed 46 days ago
B+
Retailer 8
-
€653 EUR
View
B+
Retailer 9
-
€655 EUR
View
B+
Retailer 10
-
€657 EUR
View
B+
Retailer 11
-
€673 EUR
View
B+
Retailer 12
-
€708 EUR
View
Retailer 13
-
€807 EUR
View
Price last confirmed 34 days ago
B+
Retailer 14
-
€828 EUR
View
Most Expensive
B
MOH London
68B94455F · Nov 2
€1,240 EUR
£1,090 GBP
View
14 more retailers have this diamond
Prices start from €495 EURSave up to €745 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
€495 EUR