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Heart|Natural|GIA

0.55ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 1517999925

Certificate GIA 1517999925

Diamond specifications and retailer prices

From €356 EUR
As of November 6, 2026
Save €100 EUR (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €457 EUR at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.55ct natural heart diamond

This 0.55ct natural heart sits in the half to three-quarter carat band, graded I 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 1517999925. Listed at 4 retailers as of November 6, 2026, with prices from €356 to €457, a €100 spread on the same certified stone. 77 Diamonds lists it at €457. 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

0.55
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1517999925
Dimensions5.16 × 5.66 × 3.29 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
5.16 mm5.66 mm0.55 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1517999925
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.1%

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: €457 EUR|Low: €333 EUR|High: €509 EUR|Avg: €405 EUR|-8.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2€356 EUR
Retailer 3€370 EUR
Retailer 4€399 EUR
77 Diamonds€457 EUR

39 data points across 4 retailers

4 retailers€356 EUR to €457 EUR

A
Cheapest Retailer
-
€356 EUR
A
Retailer 2
-
€370 EUR
View
Final sale: no returns
B+
Retailer 3
-
€399 EUR
View
Most Expensive
B+
77 Diamonds
HSCPQJRJKBRY · Nov 6
€457 EUR
£402 GBP
View
3 more retailers have this diamond
Prices start from €356 EURSave up to €100 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
0.55ct Heart
€356 EUR