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Round|Natural|GIA

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551327856

Certificate GIA 7551327856

Diamond specifications and retailer prices

From $7,509 AUD
$5,275 USD
As of October 26, 2026
Save $2,565 AUD (25%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $16,363 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct 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 top-tier cut grade and certified by GIA 7551327856. Listed at 9 retailers as of October 26, 2026, with a 34% 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

1.54
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551327856
Dimensions7.33 × 7.27 × 4.58 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
7.33 mm7.27 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551327856
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.8%

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 26
Current: $16,363 AUD|Low: $7,034 AUD|High: $16,880 AUD|Avg: $10,489 AUD|-3.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 12$7,509 AUD
Retailer 8$8,441 AUD
Retailer 7$8,863 AUD
Retailer 11$8,863 AUD
Retailer 10$8,869 AUD
Retailer 3$9,144 AUD
Retailer 2$10,074 AUD
Retailer 9$10,227 AUD
Retailer 5$10,644 AUD
Retailer 4$11,177 AUD
Retailer 6$14,433 AUD
NZ Jewellers$16,363 AUD

39 data points across 12 retailers

9 retailers$7,509 AUD to $10,074 AUD

A
Cheapest Retailer
-
$7,509 AUD
$5,275 USD
Retailer 2
-
$8,863 AUD
$6,226 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$8,863 AUD
$6,226 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$8,869 AUD
$6,230 USD
View
B+
Retailer 5
-
$10,074 AUD
£5,572 GBP
View
Retailer 6
-
$10,227 AUD
$7,184 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$10,644 AUD
€7,121 EUR
View
Price last confirmed 7 days ago
Retailer 8
-
$14,433 AUD
£7,983 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
52fd0370-023f-4d40-a416-d453c9749b6d · Oct 20
$16,363 AUD
$11,494 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from $7,509 AUDSave up to $2,565 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
1.54ct Round
$7,509 AUD