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Round|Natural|GIA

1.54ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6552555455

Certificate GIA 6552555455

Diamond specifications and retailer prices

From $5,287 SGD
As of November 5, 2026
Save $3,997 SGD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,408 SGD at NZ Jewellers · As of September 19, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552555455. Listed at 9 retailers as of November 2, 2026, with a 76% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552555455
Dimensions7.34 × 7.37 × 4.55 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Knot, Cloud, Needle
Top View
7.34 mm7.37 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552555455
Side View
Table 59.0%Crown 36°GirdlePavilion 40.8°CuletDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,578 SGD|Low: $5,255 SGD|High: $9,629 SGD|Avg: $6,819 SGD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 2$5,287 SGD
Retailer 3$5,671 SGD
Retailer 5$6,381 SGD
Retailer 1$6,578 SGD
Retailer 4$9,284 SGD

43 data points across 5 retailers

9 retailers$5,287 SGD to $9,284 SGD

A
Cheapest Retailer
-
$5,287 SGD
B+
Retailer 2
-
$5,671 SGD
View
Retailer 3
-
$5,889 SGD
View
Price last confirmed 29 days ago
Retailer 4
-
$5,974 SGD
View
Price last confirmed 44 days ago
Retailer 5
-
$5,974 SGD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$6,381 SGD
View
B+
Retailer 7
-
$6,578 SGD
View
B
Retailer 8
-
$9,284 SGD
View
Most Expensive
NZ Jewellers
ebb1f8eb-daf1-4661-868b-14e14aaa6397 · Sep 19
$10,408 SGD
$8,121 USD
View
Price last confirmed 47 days ago
8 more retailers have this diamond
Prices start from $5,287 SGDSave up to $3,997 SGD

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
$5,287 SGD