Round|Natural|GIA

1.53ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1499026444

Certificate GIA 1499026444

Diamond specifications and retailer prices

From $12,484 AUD
As of November 1, 2026
Save $9,740 AUD (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $31,956 AUD at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1499026444. Listed at 18 retailers as of November 1, 2026, with a 78% 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1499026444
Dimensions7.33 × 7.36 × 4.56 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
7.33 mm7.36 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1499026444
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $14,489 AUD|Low: $13,214 AUD|High: $21,075 AUD|Avg: $16,334 AUD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7$13,214 AUD
Retailer 1$14,489 AUD
Retailer 5$14,664 AUD
Retailer 6$14,668 AUD
Retailer 2$16,758 AUD
Retailer 4$19,588 AUD
Retailer 3$20,825 AUD

42 data points across 7 retailers

18 retailers$12,484 AUD to $22,223 AUD

B+
Cheapest Retailer
-
$12,484 AUD
B+
Retailer 2
-
$12,928 AUD
View
B+
Retailer 3
-
$13,214 AUD
View
Retailer 4
-
$13,334 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$14,445 AUD
View
B+
Retailer 6
-
$14,489 AUD
View
Retailer 7
-
$14,664 AUD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$14,668 AUD
View
B
Retailer 9
-
$15,371 AUD
View
B+
Retailer 10
-
$16,668 AUD
View
B+
Retailer 11
-
$16,725 AUD
View
B+
Retailer 12
-
$16,758 AUD
View
Retailer 13
-
$17,548 AUD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$19,588 AUD
View
B
Retailer 15
-
$20,825 AUD
View
B
Retailer 16
-
$22,223 AUD
View
Retailer 17
-
$25,377 AUD
View
Price last confirmed 60 days ago
Most Expensive
NZ Jewellers
4d388928-3d01-4dd9-815b-ac10f785a0b4 · Sep 1
$31,956 AUD
$22,370 USD
View
Price last confirmed 66 days ago
17 more retailers have this diamond
Prices start from $12,484 AUDSave up to $9,740 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.

B+
1.53ct Round
$12,484 AUD