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Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 1508261184

Certificate GIA 1508261184

Diamond specifications and retailer prices

From $9,096 AUD
As of November 6, 2026
Save $5,712 AUD (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $17,820 AUD at NZ Jewellers · As of September 19, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1508261184. Listed at 15 retailers as of November 4, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.53
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1508261184
Dimensions7.13 × 7.19 × 4.63 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Needle, Indented Natural
Top View
7.13 mm7.19 mm1.53 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1508261184
Side View
Table 59.0%Crown 37.5°Girdle: ThickPavilion 40.8°Culet: NoneDepth 64.7%

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 6
Current: $9,332 AUD|Low: $9,096 AUD|High: $15,027 AUD|Avg: $10,906 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3$9,096 AUD
Retailer 1$9,332 AUD
Retailer 11$9,364 AUD
Retailer 9$9,834 AUD
Retailer 6$9,850 AUD
Retailer 2$9,853 AUD
Retailer 10$10,341 AUD
Retailer 4$11,319 AUD
Retailer 5$11,568 AUD
Retailer 7$13,000 AUD
Retailer 8$14,809 AUD

28 data points across 11 retailers

15 retailers$9,096 AUD to $14,809 AUD

B+
Cheapest Retailer
-
$9,096 AUD
B+
Retailer 2
-
$9,291 AUD
View
B+
Retailer 3
-
$9,332 AUD
View
B+
Retailer 4
-
$9,364 AUD
View
B+
Retailer 5
-
$9,850 AUD
View
B+
Retailer 6
-
$9,853 AUD
View
Retailer 7
-
$10,341 AUD
View
Price last confirmed 16 days ago
Retailer 8
-
$10,654 AUD
View
Price last confirmed 51 days ago
B
Retailer 9
-
$10,889 AUD
View
B
Retailer 10
-
$11,319 AUD
View
B+
Retailer 11
-
$11,568 AUD
View
Retailer 12
-
$12,294 AUD
View
Price last confirmed 46 days ago
B
Retailer 13
-
$13,000 AUD
View
B
Retailer 14
-
$14,809 AUD
View
Most Expensive
NZ Jewellers
68907c84-ff02-425d-853e-cb1bb5ab8087 · Sep 19
$17,820 AUD
$12,244 USD
View
Price last confirmed 48 days ago
14 more retailers have this diamond
Prices start from $9,096 AUDSave up to $5,712 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
$9,096 AUD