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Round|Natural|GIA

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555994350

Certificate GIA 6555994350

Diamond specifications and retailer prices

From $6,225 AUD
HK$34,200 HKD
As of October 29, 2026
Save $8,073 AUD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,297 AUD at NZ Jewellers · As of October 27, 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 6555994350. Listed at 9 retailers as of October 27, 2026, with prices from $6,225 to $14,297, a $8,073 spread on the same certified stone. NZ Jewellers lists it at $14,297. 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
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555994350
Dimensions7.32 × 7.38 × 4.56 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.32 mm7.38 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555994350
Side View
Table 60.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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 29
Current: $14,297 AUD|Low: $6,225 AUD|High: $14,594 AUD|Avg: $8,814 AUD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7$6,225 AUD
Retailer 8$7,310 AUD
Retailer 9$7,556 AUD
Retailer 5$8,548 AUD
Retailer 6$8,548 AUD
Retailer 2$8,597 AUD
Retailer 4$9,267 AUD
Retailer 3$12,662 AUD
NZ Jewellers$14,297 AUD

39 data points across 9 retailers

9 retailers$6,225 AUD to $14,297 AUD

A
Cheapest Retailer
-
$6,225 AUD
HK$34,200 HKD
A
Retailer 2
-
$7,310 AUD
SGD 6,947 SGD
View
A
Retailer 3
-
$7,556 AUD
$5,314 USD
View
B+
Retailer 4
-
$8,548 AUD
$6,012 USD
View
B+
Retailer 5
-
$8,548 AUD
$6,012 USD
View
A
Retailer 6
-
$8,597 AUD
€5,758 EUR
View
B+
Retailer 7
-
$9,267 AUD
€6,207 EUR
View
B
Retailer 8
-
$12,662 AUD
£7,012 GBP
View
Most Expensive
B
NZ Jewellers
c08ad982-cb7d-47d5-8d83-4f50be2bec40 · Oct 27
$14,297 AUD
$10,055 USD
View
8 more retailers have this diamond
Prices start from $6,225 AUDSave up to $8,073 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
$6,225 AUD