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Round|Natural|GIA

1.53ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2557431474

Certificate GIA 2557431474

Diamond specifications and retailer prices

From $11,044 AUD
As of November 4, 2026
Save $9,134 AUD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $20,178 AUD at NZ Jewellers · As of November 5, 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 2557431474. Listed at 17 retailers as of November 4, 2026, with prices from $11,044 to $20,178, a $9,134 spread on the same certified stone. NZ Jewellers lists it at $20,178. 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
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557431474
Dimensions7.35 × 7.40 × 4.61 mm
L/W Ratio1.01
Top View
7.35 mm7.40 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557431474
Side View
Table 57.0%Crown 36°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 62.5%

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 4
Current: $20,178 AUD|Low: $11,044 AUD|High: $20,178 AUD|Avg: $14,908 AUD
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 3$11,044 AUD
Retailer 2$11,232 AUD
Retailer 15$12,512 AUD
Retailer 11$13,008 AUD
Retailer 5$13,242 AUD
Retailer 14$13,291 AUD
Retailer 13$13,364 AUD
Retailer 8$14,478 AUD
Retailer 16$14,699 AUD
Retailer 7$14,806 AUD
Retailer 10$15,135 AUD
Retailer 4$15,138 AUD
Retailer 6$16,705 AUD
Retailer 9$17,662 AUD
Retailer 12$18,856 AUD
NZ Jewellers$20,178 AUD

31 data points across 16 retailers

17 retailers$11,044 AUD to $20,178 AUD

A
Cheapest Retailer
-
$11,044 AUD
A
Retailer 2
-
$11,232 AUD
View
Retailer 3
-
$12,331 AUD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$12,512 AUD
View
B+
Retailer 5
-
$13,008 AUD
View
B+
Retailer 6
-
$13,242 AUD
View
Retailer 7
-
$13,291 AUD
View
Price last confirmed 14 days ago
Retailer 8
-
$13,364 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$14,478 AUD
View
B+
Retailer 10
-
$14,699 AUD
View
B+
Retailer 11
-
$14,806 AUD
View
B+
Retailer 12
-
$15,135 AUD
View
B+
Retailer 13
-
$15,138 AUD
View
B+
Retailer 14
-
$16,705 AUD
View
B+
Retailer 15
-
$17,662 AUD
View
B
Retailer 16
-
$18,856 AUD
View
Most Expensive
B
NZ Jewellers
11925df7-eea8-420a-ac7c-04b9c4472036 · Nov 5
$20,178 AUD
$14,125 USD
View
16 more retailers have this diamond
Prices start from $11,044 AUDSave up to $9,134 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
1.53ct Round
$11,044 AUD