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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 $8,825 NZD
$4,974 USD
As of October 30, 2026
Save $6,989 NZD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $16,923 NZD 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: $11,454 NZD|Low: $8,825 NZD|High: $15,918 NZD|Avg: $10,772 NZD|+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$8,825 NZD
Retailer 9$8,880 NZD
Retailer 4$9,061 NZD
Retailer 11$9,457 NZD
Retailer 6$10,000 NZD
Retailer 3$10,119 NZD
Retailer 10$10,119 NZD
Retailer 5$10,188 NZD
Retailer 1$11,454 NZD
Retailer 2$11,675 NZD
Retailer 8$12,322 NZD
Retailer 7$15,814 NZD

40 data points across 12 retailers

17 retailers$8,825 NZD to $15,814 NZD

A
Cheapest Retailer
-
$8,825 NZD
$4,974 USD
Retailer 2
-
$8,880 NZD
$5,005 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$9,061 NZD
$5,107 USD
View
A
Retailer 4
-
$9,457 NZD
$5,330 USD
View
B+
Retailer 5
-
$10,000 NZD
£4,438 GBP
View
Retailer 6
-
$10,119 NZD
$5,703 USD
View
Price last confirmed 15 days ago
Retailer 7
-
$10,119 NZD
$5,703 USD
View
Price last confirmed 40 days ago
Retailer 8
-
$10,119 NZD
$5,703 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$10,119 NZD
$5,703 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$10,188 NZD
£4,521 GBP
View
B+
Retailer 11
-
$10,393 NZD
$5,858 USD
View
B+
Retailer 12
-
$11,454 NZD
€6,148 EUR
View
Retailer 13
-
$11,675 NZD
$6,580 USD
View
Price last confirmed 41 days ago
Retailer 14
-
$11,675 NZD
$6,580 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
$12,322 NZD
ZAR 112,190 ZAR
View
B
Retailer 16
-
$15,814 NZD
£7,018 GBP
View
Most Expensive
NZ Jewellers
1c628595-5e8c-4910-b08d-70337a70c21d · Sep 25
$16,923 NZD
$9,538 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $8,825 NZDSave up to $6,989 NZD

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
$8,825 NZD