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Round|Natural|GIA

1.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2556434576

Certificate GIA 2556434576

Diamond specifications and retailer prices

From $6,316 AUD
HK$34,700 HKD
As of October 29, 2026
Save $6,664 AUD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,398 AUD at NZ Jewellers · As of September 25, 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 2556434576. Listed at 13 retailers as of October 23, 2026, with a 106% 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 angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556434576
Dimensions7.28 × 7.33 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.28 mm7.33 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556434576
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.9%

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 29
Current: $8,048 AUD|Low: $6,316 AUD|High: $13,095 AUD|Avg: $8,432 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$6,316 AUD
Retailer 11$6,637 AUD
Retailer 6$6,967 AUD
Retailer 7$7,042 AUD
Retailer 9$7,493 AUD
Retailer 2$7,550 AUD
Retailer 1$8,048 AUD
Retailer 3$8,113 AUD
Retailer 5$9,051 AUD
Retailer 4$12,339 AUD
Retailer 8$12,980 AUD

35 data points across 11 retailers

13 retailers$6,316 AUD to $12,980 AUD

A
Cheapest Retailer
-
$6,316 AUD
HK$34,700 HKD
A
Retailer 2
-
$6,637 AUD
$4,668 USD
View
A
Retailer 3
-
$6,967 AUD
$4,900 USD
View
Final sale: no returns
A
Retailer 4
-
$7,042 AUD
$4,952 USD
View
A
Retailer 5
-
$7,368 AUD
View
A
Retailer 6
-
$7,493 AUD
$5,270 USD
View
A
Retailer 7
-
$7,550 AUD
$5,310 USD
View
B+
Retailer 8
-
$8,048 AUD
£4,457 GBP
View
B+
Retailer 9
-
$8,113 AUD
View
B+
Retailer 10
-
$9,051 AUD
€6,062 EUR
View
B
Retailer 11
-
$12,339 AUD
£6,833 GBP
View
B
Retailer 12
-
$12,980 AUD
$9,129 USD
View
Most Expensive
B
NZ Jewellers
9e616bd5-98c0-432e-92b9-f54fb9cc7a36 · Sep 25
$14,398 AUD
$10,126 USD
View
Price last confirmed 34 days ago
12 more retailers have this diamond
Prices start from $6,316 AUDSave up to $6,664 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
$6,316 AUD