Round|Natural|GIA

0.30ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5493773118

Certificate GIA 5493773118

Diamond specifications and retailer prices

From $301 SGD
₹22,399 INR
As of October 30, 2026
Save $678 SGD (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,622 SGD 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
Colour
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: $1,622 SGD|Low: $299 SGD|High: $1,622 SGD|Avg: $661 SGD
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$301 SGD
Retailer 10$423 SGD
Retailer 8$435 SGD
Retailer 11$456 SGD
Retailer 3$472 SGD
Retailer 5$543 SGD
Retailer 4$656 SGD
Retailer 9$678 SGD
Retailer 6$703 SGD
Retailer 7$979 SGD
NZ Jewellers$1,622 SGD

36 data points across 11 retailers

20 retailers$301 SGD to $979 SGD

A
Cheapest Retailer
-
$301 SGD
₹22,399 INR
B+
Retailer 2
-
$400 SGD
$313 USD
View
B+
Retailer 3
-
$423 SGD
$331 USD
View
Retailer 4
-
$423 SGD
$331 USD
View
Price last confirmed 37 days ago
B+
Retailer 5
-
$435 SGD
$340 USD
View
B+
Retailer 6
-
$447 SGD
View
B+
Retailer 7
-
$456 SGD
$357 USD
View
B+
Retailer 8
-
$472 SGD
$369 USD
View
B+
Retailer 9
-
$543 SGD
£335 GBP
View
Retailer 10
-
$570 SGD
$446 USD
View
Price last confirmed 39 days ago
B
Retailer 11
-
$590 SGD
$462 USD
View
B
Retailer 12
-
$616 SGD
$482 USD
View
B
Retailer 13
-
$641 SGD
£395 GBP
View
B
Retailer 14
-
$656 SGD
ZAR 8,293 ZAR
View
B
Retailer 15
-
$678 SGD
$530 USD
View
Retailer 16
-
$678 SGD
A$816 AUD
View
Price last confirmed 27 days ago
B
Retailer 17
-
$703 SGD
€524 EUR
View
B
Retailer 18
-
$979 SGD
£603 GBP
View
Retailer 19
-
$1,622 SGD
$1,269 USD
View
Price under review
Most Expensive
NZ Jewellers
5ac0f48f-46ca-490e-a5d4-d5fb15bcfa66 · Sep 24
$1,622 SGD
$1,269 USD
View
Price under review
19 more retailers have this diamond
Prices start from $301 SGDSave up to $678 SGD

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
$301 SGD