Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1533989187

Certificate GIA 1533989187

Diamond specifications and retailer prices

From $207 USD
As of November 6, 2026
Save $1,088 USD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,295 USD at NZ Jewellers · As of November 4, 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 1533989187. Listed at 21 retailers as of November 4, 2026, with prices from $207 to $1,295, a $1,088 spread on the same certified stone. NZ Jewellers lists it at $1,295. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1533989187
Dimensions4.92 × 4.86 × 3.03 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather
Top View
4.92 mm4.86 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1533989187
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: $1,295 USD|Low: $207 USD|High: $1,345 USD|Avg: $440 USD|-2.5%
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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 12$207 USD
Retailer 18$226 USD
Retailer 11$256 USD
Retailer 6$286 USD
Retailer 14$313 USD
Retailer 10$320 USD
Retailer 2$323 USD
Retailer 7$330 USD
Retailer 4$341 USD
Retailer 15$358 USD
Retailer 8$385 USD
Retailer 17$400 USD
Retailer 9$432 USD
Retailer 19$445 USD
Retailer 16$494 USD
Retailer 5$510 USD
Retailer 13$575 USD
Retailer 3$659 USD
NZ Jewellers$1,295 USD

14 data points across 19 retailers

21 retailers$207 USD to $1,295 USD

A
Cheapest Retailer
-
$207 USD
A
Retailer 2
-
$226 USD
View
A
Retailer 3
-
$256 USD
View
A
Retailer 4
-
$286 USD
View
A
Retailer 5
-
$313 USD
View
Retailer 6
-
$320 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$323 USD
View
A
Retailer 8
-
$330 USD
View
A
Retailer 9
-
$341 USD
View
A
Retailer 10
-
$358 USD
View
Retailer 11
-
$375 USD
View
Price last confirmed 51 days ago
A
Retailer 12
-
$385 USD
View
A
Retailer 13
-
$400 USD
View
Retailer 14
-
$432 USD
View
Price last confirmed 7 days ago
A
Retailer 15
-
$445 USD
View
A
Retailer 16
-
$494 USD
View
A
Retailer 17
-
$510 USD
View
Retailer 18
-
$550 USD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$575 USD
View
B+
Retailer 20
-
$659 USD
View
Most Expensive
C
NZ Jewellers
557ebd78-ab8e-40a9-ac6c-43c110e4162f · Nov 4
$1,295 USD
View
20 more retailers have this diamond
Prices start from $207 USDSave up to $1,088 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
0.45ct Round
$207 USD