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Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 6521419341

Certificate GIA 6521419341

Diamond specifications and retailer prices

From €368 EUR
As of November 6, 2026
Save €102 EUR (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €470 EUR at 77 Diamonds · As of November 7, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521419341. Listed at 4 retailers as of November 6, 2026, with prices from €368 to €470, a €102 spread on the same certified stone. 77 Diamonds lists it at €470. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521419341
Dimensions4.96 × 5.48 × 3.26 mm
L/W Ratio1.10
Top View
4.96 mm5.48 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6521419341
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.5%

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: €470 EUR|Low: €350 EUR|High: €542 EUR|Avg: €425 EUR|-11.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 2€368 EUR
Retailer 3€381 EUR
Retailer 4€413 EUR
77 Diamonds€470 EUR

42 data points across 4 retailers

4 retailers€368 EUR to €470 EUR

A
Cheapest Retailer
-
€368 EUR
A
Retailer 2
-
€381 EUR
View
Final sale: no returns
B+
Retailer 3
-
€413 EUR
View
Most Expensive
B+
77 Diamonds
HSCP44YWNYN7 · Nov 7
€470 EUR
£413 GBP
View
3 more retailers have this diamond
Prices start from €368 EURSave up to €102 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
€368 EUR