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Round|Natural|IGI

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 635477973

Shape and cutting style on the report: Round brilliant

Certificate IGI 635477973

Diamond specifications and retailer prices

From $6,359 SGD
$4,974 USD
As of October 30, 2026
Save $5,035 SGD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,193 SGD at NZ Jewellers · As of September 25, 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 IGI 635477973. Listed at 17 retailers as of October 29, 2026, with a 79% 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 635477973
Dimensions7.44 × 7.36 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.44 mm7.36 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 635477973
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.7%

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 30
Current: $8,253 SGD|Low: $6,359 SGD|High: $11,469 SGD|Avg: $7,762 SGD|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 12$6,359 SGD
Retailer 9$6,398 SGD
Retailer 4$6,529 SGD
Retailer 11$6,814 SGD
Retailer 6$7,205 SGD
Retailer 3$7,291 SGD
Retailer 10$7,291 SGD
Retailer 5$7,341 SGD
Retailer 1$8,253 SGD
Retailer 2$8,412 SGD
Retailer 8$8,878 SGD
Retailer 7$11,394 SGD

40 data points across 12 retailers

17 retailers$6,359 SGD to $11,394 SGD

A
Cheapest Retailer
-
$6,359 SGD
$4,974 USD
Retailer 2
-
$6,398 SGD
$5,005 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$6,529 SGD
$5,107 USD
View
A
Retailer 4
-
$6,814 SGD
$5,330 USD
View
B+
Retailer 5
-
$7,205 SGD
£4,438 GBP
View
Retailer 6
-
$7,291 SGD
$5,703 USD
View
Price last confirmed 14 days ago
Retailer 7
-
$7,291 SGD
$5,703 USD
View
Price last confirmed 40 days ago
Retailer 8
-
$7,291 SGD
$5,703 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$7,291 SGD
$5,703 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$7,341 SGD
£4,521 GBP
View
B+
Retailer 11
-
$7,489 SGD
$5,858 USD
View
B+
Retailer 12
-
$8,253 SGD
€6,148 EUR
View
Retailer 13
-
$8,412 SGD
$6,580 USD
View
Price last confirmed 40 days ago
Retailer 14
-
$8,412 SGD
$6,580 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
$8,878 SGD
ZAR 112,190 ZAR
View
B
Retailer 16
-
$11,394 SGD
£7,018 GBP
View
Most Expensive
NZ Jewellers
1c628595-5e8c-4910-b08d-70337a70c21d · Sep 25
$12,193 SGD
$9,538 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $6,359 SGDSave up to $5,035 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
$6,359 SGD