Heart|Natural|GIA

0.55ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 6521868767

Certificate GIA 6521868767

Diamond specifications and retailer prices

From $430 USD
As of November 6, 2026
Save $209 USD (33%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $639 USD at Steven Stone · As of November 7, 2026
View at Steven Stone

About this 0.55ct natural heart diamond

This 0.55ct 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 6521868767. Listed at 4 retailers as of November 6, 2026, with prices from $430 to $639, a $209 spread on the same certified stone. Steven Stone lists it at $639. 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
G
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6521868767
Dimensions5.11 × 5.77 × 3.28 mm
L/W Ratio1.13
Top View
5.11 mm5.77 mm0.55 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6521868767
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.8%

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: $548 USD|Low: $412 USD|High: $639 USD|Avg: $493 USD|-9.1%
Retailer 1
Retailer 2
Retailer 3
Steven Stone
November 7, 2026
Retailer 2$430 USD
Retailer 3$444 USD
Retailer 1$548 USD
Steven Stone$639 USD

41 data points across 4 retailers

4 retailers$430 USD to $639 USD

A
Cheapest Retailer
-
$430 USD
A
Retailer 2
-
$444 USD
View
Final sale: no returns
B+
Retailer 3
-
$548 USD
View
Most Expensive
B
Steven Stone
333563906 · Nov 7
$639 USD
£503 GBP
View
3 more retailers have this diamond
Prices start from $430 USDSave up to $209 USD

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
$430 USD