Round|Natural|GIA

0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1553112517

Certificate GIA 1553112517

Diamond specifications and retailer prices

From $530 USD
As of November 5, 2026
Save $465 USD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $995 USD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553112517. Listed at 11 retailers as of November 5, 2026, with prices from $530 to $995, a $465 spread on the same certified stone. Frank Darling lists it at $995. 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

0.55
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1553112517
Dimensions5.24 × 3.25 × 3.25 mm
L/W Ratio1.61
Culet sizeNone
Top View
5.24 mm3.25 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553112517
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.8%

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 5
Current: $995 USD|Low: $530 USD|High: $1,029 USD|Avg: $751 USD|-3.3%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$530 USD
Retailer 10$569 USD
Retailer 4$582 USD
Retailer 3$660 USD
Retailer 8$740 USD
Retailer 5$795 USD
Retailer 6$806 USD
Retailer 2$836 USD
Retailer 7$849 USD
Frank Darling$995 USD

34 data points across 10 retailers

11 retailers$530 USD to $995 USD

A
Cheapest Retailer
-
$530 USD
A
Retailer 2
-
$569 USD
View
A
Retailer 3
-
$582 USD
View
A
Retailer 4
-
$660 USD
View
B+
Retailer 5
-
$707 USD
View
B+
Retailer 6
-
$740 USD
View
B+
Retailer 7
-
$795 USD
View
B+
Retailer 8
-
$806 USD
View
B+
Retailer 9
-
$836 USD
View
B+
Retailer 10
-
$849 USD
View
Most Expensive
B+
Frank Darling
2627231HK · Nov 6
$995 USD
View
10 more retailers have this diamond
Prices start from $530 USDSave up to $465 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 Round
$530 USD