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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1515699351

Certificate GIA 1515699351

Diamond specifications and retailer prices

From $381 SGD
As of November 6, 2026
Save $1,611 SGD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,088 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1515699351. Listed at 23 retailers as of November 4, 2026, with a 423% 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

0.45
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1515699351
Dimensions4.85 × 4.90 × 3.07 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal
Top View
4.85 mm4.90 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1515699351
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NDepth 63.0%

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 6
Current: $1,992 SGD|Low: $381 SGD|High: $2,047 SGD|Avg: $739 SGD|-2.7%
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
Retailer 16
November 6, 2026
Retailer 9$381 SGD
Retailer 3$519 SGD
Retailer 4$556 SGD
Retailer 10$557 SGD
Retailer 8$568 SGD
Retailer 16$579 SGD
Retailer 5$600 SGD
Retailer 2$605 SGD
Retailer 11$670 SGD
Retailer 13$675 SGD
Retailer 15$687 SGD
Retailer 6$795 SGD
Retailer 14$809 SGD
Retailer 12$861 SGD
Retailer 7$1,206 SGD
NZ Jewellers$1,992 SGD

20 data points across 16 retailers

23 retailers$381 SGD to $1,992 SGD

A
Cheapest Retailer
-
$381 SGD
A
Retailer 2
-
$459 SGD
View
A
Retailer 3
-
$519 SGD
View
A
Retailer 4
-
$556 SGD
View
A
Retailer 5
-
$557 SGD
View
Retailer 6
-
$568 SGD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$579 SGD
View
Retailer 8
-
$587 SGD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$600 SGD
View
A
Retailer 10
-
$605 SGD
View
Retailer 11
-
$628 SGD
View
Price last confirmed 38 days ago
Retailer 12
-
$631 SGD
View
Price last confirmed 64 days ago
B+
Retailer 13
-
$670 SGD
View
A
Retailer 14
-
$675 SGD
View
B+
Retailer 15
-
$687 SGD
View
B+
Retailer 16
-
$795 SGD
View
B+
Retailer 17
-
$809 SGD
View
B+
Retailer 18
-
$861 SGD
View
Retailer 19
-
$865 SGD
View
Price last confirmed 38 days ago
B
Retailer 20
-
$1,206 SGD
View
Retailer 21
-
$1,797 SGD
View
Price last confirmed 65 days ago
B
Retailer 22
-
$1,992 SGD
View
Most Expensive
NZ Jewellers
401d7a27-a1be-4169-897d-adca74510d29 · Sep 28
$2,088 SGD
$1,629 USD
View
Price last confirmed 39 days ago
22 more retailers have this diamond
Prices start from $381 SGDSave up to $1,611 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
0.45ct Round
$381 SGD