Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2308949230

Certificate GIA 2308949230

Diamond specifications and retailer prices

From $360 USD
As of November 2, 2026
Save $1,280 USD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,640 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 2308949230. Listed at 15 retailers as of October 30, 2026, with prices from $360 to $1,640, a $1,280 spread on the same certified stone. NZ Jewellers lists it at $1,640. 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
SymmetryVery Good
FluorescenceMedium
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2308949230
Dimensions5.24 × 5.27 × 3.28 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.24 mm5.27 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2308949230
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

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 2
Current: $1,640 USD|Low: $360 USD|High: $1,640 USD|Avg: $727 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 6$360 USD
Retailer 9$386 USD
Retailer 14$523 USD
Retailer 13$563 USD
Retailer 15$563 USD
Retailer 10$565 USD
Retailer 4$603 USD
Retailer 5$603 USD
Retailer 2$647 USD
Retailer 8$705 USD
Retailer 3$732 USD
Retailer 11$807 USD
Retailer 7$816 USD
Retailer 12$1,209 USD
NZ Jewellers$1,640 USD

35 data points across 15 retailers

15 retailers$360 USD to $1,640 USD

A
Cheapest Retailer
-
$360 USD
Final sale: no returns
A
Retailer 2
-
$386 USD
₹36,751 INR
View
A
Retailer 3
-
$523 USD
View
B+
Retailer 4
-
$563 USD
View
B+
Retailer 5
-
$563 USD
View
A
Retailer 6
-
$565 USD
View
B+
Retailer 7
-
$603 USD
View
B+
Retailer 8
-
$603 USD
View
B+
Retailer 9
-
$647 USD
£509 GBP
View
B+
Retailer 10
-
$705 USD
€671 EUR
View
B+
Retailer 11
-
$732 USD
View
B+
Retailer 12
-
$807 USD
ZAR 13,038 ZAR
View
Retailer 13
-
$816 USD
A$1,256 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$1,209 USD
£952 GBP
View
Most Expensive
B
NZ Jewellers
8cfbbe36-69f1-4f47-a42c-a4d6403e2c2e · Oct 30
$1,640 USD
View
14 more retailers have this diamond
Prices start from $360 USDSave up to $1,280 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
$360 USD