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Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2556999425

Certificate GIA 2556999425

Diamond specifications and retailer prices

From $428 USD
₹40,739 INR
As of November 1, 2026
Save $1,393 USD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,821 USD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556999425. Listed at 16 retailers as of October 30, 2026, with prices from $428 to $1,821, a $1,393 spread on the same certified stone. NZ Jewellers lists it at $1,821. 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556999425
Dimensions5.22 × 5.26 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.22 mm5.26 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556999425
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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 1
Current: $1,821 USD|Low: $364 USD|High: $1,821 USD|Avg: $831 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3$428 USD
Retailer 6$535 USD
Retailer 9$581 USD
Retailer 7$625 USD
Retailer 8$670 USD
Retailer 2$716 USD
Retailer 4$775 USD
Retailer 5$1,341 USD
NZ Jewellers$1,821 USD

41 data points across 9 retailers

16 retailers$428 USD to $1,821 USD

A
Cheapest Retailer
-
$428 USD
₹40,739 INR
A
Retailer 2
-
$535 USD
View
Final sale: no returns
Retailer 3
-
$581 USD
View
Price last confirmed 39 days ago
Retailer 4
-
$581 USD
View
Price last confirmed 55 days ago
B+
Retailer 5
-
$581 USD
View
B+
Retailer 6
-
$602 USD
SGD 813 SGD
View
B+
Retailer 7
-
$625 USD
View
Retailer 8
-
$670 USD
View
Price last confirmed 56 days ago
Retailer 9
-
$670 USD
View
Price last confirmed 41 days ago
B+
Retailer 10
-
$670 USD
View
B+
Retailer 11
-
$716 USD
£564 GBP
View
B+
Retailer 12
-
$775 USD
€738 EUR
View
B
Retailer 13
-
$1,341 USD
£1,056 GBP
View
Retailer 14
-
$1,821 USD
View
Price last confirmed 41 days ago
Retailer 15
-
$1,821 USD
View
Price last confirmed 64 days ago
Most Expensive
B
NZ Jewellers
bbb91b0d-06a8-4b1f-942b-677ca9ea70bc · Oct 30
$1,821 USD
View
15 more retailers have this diamond
Prices start from $428 USDSave up to $1,393 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
$428 USD