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Round|Natural|GIA

1.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2556412690

Certificate GIA 2556412690

Diamond specifications and retailer prices

From $6,019 AUD
$4,228 USD
As of October 30, 2026
Save $6,604 AUD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,128 AUD at NZ Jewellers · As of October 3, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556412690. Listed at 14 retailers as of October 30, 2026, with a 110% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556412690
Dimensions7.29 × 7.32 × 4.61 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Needle
Top View
7.29 mm7.32 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556412690
Side View
Table 57.0%Crown 36.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.1%

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: Oct 30
Current: $6,129 AUD|Low: $6,019 AUD|High: $12,893 AUD|Avg: $8,327 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$6,019 AUD
Retailer 1$6,129 AUD
Retailer 11$7,018 AUD
Retailer 9$8,043 AUD
Retailer 10$8,043 AUD
Retailer 8$8,314 AUD
Retailer 4$8,572 AUD
Retailer 7$8,745 AUD
Retailer 3$8,760 AUD
Retailer 6$8,931 AUD
Retailer 5$12,623 AUD

30 data points across 11 retailers

14 retailers$6,019 AUD to $12,623 AUD

A
Cheapest Retailer
-
$6,019 AUD
$4,228 USD
A
Retailer 2
-
$6,129 AUD
$4,305 USD
View
A
Retailer 3
-
$7,018 AUD
$4,930 USD
View
Retailer 4
-
$7,111 AUD
$4,995 USD
View
Price last confirmed 24 days ago
Retailer 5
-
$7,256 AUD
$5,097 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$7,871 AUD
$5,529 USD
View
B+
Retailer 7
-
$8,043 AUD
$5,650 USD
View
B+
Retailer 8
-
$8,043 AUD
$5,650 USD
View
Retailer 9
-
$8,206 AUD
$5,764 USD
View
Price last confirmed 23 days ago
B+
Retailer 10
-
$8,314 AUD
$5,840 USD
View
B+
Retailer 11
-
$8,572 AUD
£4,741 GBP
View
B+
Retailer 12
-
$8,931 AUD
€5,975 EUR
View
B
Retailer 13
-
$12,623 AUD
£6,982 GBP
View
Most Expensive
NZ Jewellers
e3f72e15-2664-4947-9355-d20b6febb113 · Oct 3
$13,128 AUD
$9,222 USD
View
Price last confirmed 29 days ago
13 more retailers have this diamond
Prices start from $6,019 AUDSave up to $6,604 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
$6,019 AUD