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Round|Natural|GIA

1.54ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1409252458

Certificate GIA 1409252458

Diamond specifications and retailer prices

From $7,514 AUD
As of November 1, 2026
Save $8,987 AUD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,501 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1409252458. Listed at 15 retailers as of November 1, 2026, with prices from $7,514 to $16,501, a $8,987 spread on the same certified stone. NZ Jewellers lists it at $16,501. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1409252458
Dimensions7.35 × 7.31 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional twinning wisps pinpoints and surface graining are not shown.
Key to symbols
Feather, Crystal, Twinning Wisp, Cavity, Needle, Indented Natural
Top View
7.35 mm7.31 mm1.54 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1409252458
Side View
Table 57.0%Crown 36°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 1
Current: $16,501 AUD|Low: $7,514 AUD|High: $16,501 AUD|Avg: $10,556 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$7,514 AUD
Retailer 8$7,795 AUD
Retailer 11$8,320 AUD
Retailer 4$8,938 AUD
Retailer 10$8,938 AUD
Retailer 12$8,938 AUD
Retailer 2$9,307 AUD
Retailer 3$10,312 AUD
Retailer 5$10,711 AUD
Retailer 9$13,251 AUD
Retailer 6$14,495 AUD
NZ Jewellers$16,501 AUD

42 data points across 12 retailers

15 retailers$7,514 AUD to $16,501 AUD

B+
Cheapest Retailer
-
$7,514 AUD
B
Retailer 2
-
$7,795 AUD
View
B
Retailer 3
-
$8,320 AUD
View
B
Retailer 4
-
$8,807 AUD
View
Retailer 5
-
$8,938 AUD
View
Price last confirmed 60 days ago
Retailer 6
-
$8,938 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$8,938 AUD
View
B
Retailer 8
-
$8,938 AUD
View
B
Retailer 9
-
$9,307 AUD
View
Retailer 10
-
$10,312 AUD
View
Price last confirmed 60 days ago
B
Retailer 11
-
$10,312 AUD
View
B
Retailer 12
-
$10,711 AUD
View
Retailer 13
-
$10,875 AUD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$14,495 AUD
View
Most Expensive
B
NZ Jewellers
5e4adebc-b24e-4579-b715-f7e620d24c43 · Nov 5
$16,501 AUD
$11,551 USD
View
14 more retailers have this diamond
Prices start from $7,514 AUDSave up to $8,987 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+
1.54ct Round
$7,514 AUD