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Round|Natural|GIA

0.55ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2566197610

Certificate GIA 2566197610

Diamond specifications and retailer prices

From $499 USD
As of November 6, 2026
Save $1,004 USD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,299 USD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566197610. Listed at 15 retailers as of November 4, 2026, with a 201% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566197610
Dimensions5.19 × 5.23 × 3.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.19 mm5.23 mm0.55 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566197610
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

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 6
Current: $499 USD|Low: $499 USD|High: $1,634 USD|Avg: $801 USD|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$499 USD
Retailer 5$563 USD
Retailer 3$583 USD
Retailer 7$601 USD
Retailer 11$658 USD
Retailer 2$707 USD
Retailer 8$779 USD
Retailer 4$791 USD
Retailer 9$866 USD
Retailer 10$908 USD
Retailer 6$1,503 USD

36 data points across 11 retailers

15 retailers$499 USD to $1,503 USD

A
Cheapest Retailer
-
$499 USD
A
Retailer 2
-
$563 USD
View
Retailer 3
-
$583 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$601 USD
View
Final sale: no returns
Retailer 5
-
$658 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$707 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$733 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$761 USD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$779 USD
View
A
Retailer 10
-
$791 USD
View
Retailer 11
-
$846 USD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
$866 USD
View
B+
Retailer 13
-
$908 USD
View
B
Retailer 14
-
$1,503 USD
View
Most Expensive
NZ Jewellers
d066c248-5048-4c7a-9907-7108ed5eaced · Sep 24
$2,299 USD
View
Price last confirmed 43 days ago
14 more retailers have this diamond
Prices start from $499 USDSave up to $1,004 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
$499 USD