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Round|Natural|GIA

0.45ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2527234391

Certificate GIA 2527234391

Diamond specifications and retailer prices

From $567 AUD
As of November 6, 2026
Save $1,894 AUD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,601 AUD at Carbon Sparkle · As of October 22, 2026
View at Carbon Sparkle

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2527234391. Listed at 20 retailers as of November 4, 2026, with a 334% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2527234391
Dimensions4.90 × 4.94 × 3.01 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.90 mm4.94 mm0.45 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2527234391
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.2%

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: $2,601 AUD|Low: $567 AUD|High: $3,988 AUD|Avg: $1,354 AUD
Carbon Sparkle
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$567 AUD
Retailer 9$846 AUD
Retailer 5$976 AUD
Retailer 6$979 AUD
Retailer 4$1,053 AUD
Retailer 10$1,064 AUD
Retailer 11$1,093 AUD
Retailer 3$1,180 AUD
Retailer 7$1,216 AUD
Retailer 8$1,810 AUD
Carbon Sparkle$2,601 AUD

36 data points across 11 retailers

20 retailers$567 AUD to $2,461 AUD

A
Cheapest Retailer
-
$567 AUD
Retailer 2
-
$621 AUD
View
Price last confirmed 63 days ago
Retailer 3
-
$784 AUD
View
Price last confirmed 44 days ago
Retailer 4
-
$846 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$846 AUD
View
Price last confirmed 22 days ago
Retailer 6
-
$906 AUD
View
Price last confirmed 45 days ago
Retailer 7
-
$906 AUD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$971 AUD
View
B+
Retailer 9
-
$976 AUD
View
B+
Retailer 10
-
$979 AUD
View
B+
Retailer 11
-
$1,053 AUD
View
B+
Retailer 12
-
$1,064 AUD
View
B+
Retailer 13
-
$1,093 AUD
View
Retailer 14
-
$1,180 AUD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$1,216 AUD
View
B
Retailer 16
-
$1,810 AUD
View
B
Retailer 17
-
$2,461 AUD
View
Retailer 18
-
$2,461 AUD
View
Price last confirmed 43 days ago
Retailer 19
-
$2,461 AUD
View
Price last confirmed 17 days ago
Most Expensive
Carbon Sparkle
34c678aa-dbe6-43ac-a631-9ea9cd1d09de · Oct 22
$2,601 AUD
$1,821 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $567 AUDSave up to $1,894 AUD

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
$567 AUD