Round|Natural|GIA

0.30ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5493773118

Certificate GIA 5493773118

Diamond specifications and retailer prices

From $235 USD
₹22,399 INR
As of October 30, 2026
Save $531 USD (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,269 USD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5493773118. Listed at 20 retailers as of October 26, 2026, with a 226% 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

0.30
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5493773118
Dimensions4.36 × 4.34 × 2.63 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
4.36 mm4.34 mm0.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5493773118
Side View
Table 59.0%Crown 35°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.5%

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: Oct 30
Current: $1,269 USD|Low: $234 USD|High: $1,269 USD|Avg: $517 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$235 USD
Retailer 10$331 USD
Retailer 8$340 USD
Retailer 11$357 USD
Retailer 3$369 USD
Retailer 5$425 USD
Retailer 4$513 USD
Retailer 9$530 USD
Retailer 6$550 USD
Retailer 7$766 USD
NZ Jewellers$1,269 USD

36 data points across 11 retailers

20 retailers$235 USD to $766 USD

A
Cheapest Retailer
-
$235 USD
₹22,399 INR
B+
Retailer 2
-
$313 USD
View
B+
Retailer 3
-
$331 USD
View
Retailer 4
-
$331 USD
View
Price last confirmed 37 days ago
B+
Retailer 5
-
$340 USD
View
B+
Retailer 6
-
$349 USD
SGD 472 SGD
View
B+
Retailer 7
-
$357 USD
View
B+
Retailer 8
-
$369 USD
View
B+
Retailer 9
-
$425 USD
£335 GBP
View
Retailer 10
-
$446 USD
View
Price last confirmed 38 days ago
B
Retailer 11
-
$462 USD
View
B
Retailer 12
-
$482 USD
View
B
Retailer 13
-
$502 USD
£395 GBP
View
B
Retailer 14
-
$513 USD
ZAR 8,293 ZAR
View
B
Retailer 15
-
$530 USD
View
Retailer 16
-
$530 USD
A$816 AUD
View
Price last confirmed 26 days ago
B
Retailer 17
-
$550 USD
€524 EUR
View
B
Retailer 18
-
$766 USD
£603 GBP
View
Retailer 19
-
$1,269 USD
View
Price under review
Most Expensive
NZ Jewellers
5ac0f48f-46ca-490e-a5d4-d5fb15bcfa66 · Sep 24
$1,269 USD
View
Price under review
19 more retailers have this diamond
Prices start from $235 USDSave up to $531 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
0.30ct Round
$235 USD