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Round|Natural|GIA

1.54ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2558327820

Certificate GIA 2558327820

Diamond specifications and retailer prices

From $4,069 SGD
As of November 5, 2026
Save $2,987 SGD (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,370 SGD at NZ Jewellers · As of October 3, 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 2558327820. Listed at 10 retailers as of November 4, 2026, with a 73% 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
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2558327820
Dimensions7.33 × 7.29 × 4.62 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
7.33 mm7.29 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2558327820
Side View
Table 57.0%Crown 36.5°GirdlePavilion 41°Culet: NoneDepth 63.1%

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: Nov 5
Current: $5,164 SGD|Low: $4,069 SGD|High: $7,255 SGD|Avg: $5,129 SGD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5$4,069 SGD
Retailer 3$4,351 SGD
Retailer 2$4,920 SGD
Retailer 1$5,164 SGD
Retailer 4$7,056 SGD

43 data points across 5 retailers

10 retailers$4,069 SGD to $7,056 SGD

A
Cheapest Retailer
-
$4,069 SGD
Retailer 2
-
$4,231 SGD
View
Price last confirmed 29 days ago
Retailer 3
-
$4,231 SGD
View
Price last confirmed 29 days ago
A
Retailer 4
-
$4,351 SGD
View
Retailer 5
-
$4,452 SGD
View
Price last confirmed 38 days ago
Retailer 6
-
$4,882 SGD
View
Price last confirmed 35 days ago
A
Retailer 7
-
$4,920 SGD
View
B+
Retailer 8
-
$5,164 SGD
View
B
Retailer 9
-
$7,056 SGD
View
Most Expensive
NZ Jewellers
3179db4e-05ff-4f38-a2e9-7e98a5c48f4d · Oct 3
$7,370 SGD
$5,751 USD
View
Price last confirmed 34 days ago
9 more retailers have this diamond
Prices start from $4,069 SGDSave up to $2,987 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
$4,069 SGD