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Round|Natural|GIA

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551327856

Certificate GIA 7551327856

Diamond specifications and retailer prices

From $9,359 NZD
$5,275 USD
As of October 26, 2026
Save $1,694 NZD (15%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $20,394 NZD at NZ Jewellers · As of October 20, 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 GIA 7551327856. Listed at 9 retailers as of October 26, 2026, with a relatively tight 18% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551327856
Dimensions7.33 × 7.27 × 4.58 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
7.33 mm7.27 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551327856
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.8%

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 26
Current: $20,394 NZD|Low: $8,767 NZD|High: $21,038 NZD|Avg: $13,073 NZD|-3.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 12$9,359 NZD
Retailer 8$10,520 NZD
Retailer 7$11,047 NZD
Retailer 11$11,047 NZD
Retailer 10$11,054 NZD
Retailer 3$11,396 NZD
Retailer 2$12,556 NZD
Retailer 9$12,747 NZD
Retailer 5$13,267 NZD
Retailer 4$13,930 NZD
Retailer 6$17,989 NZD
NZ Jewellers$20,394 NZD

39 data points across 12 retailers

9 retailers$9,359 NZD to $11,054 NZD

A
Cheapest Retailer
-
$9,359 NZD
$5,275 USD
Retailer 2
-
$11,047 NZD
$6,226 USD
View
Price last confirmed 11 days ago
Retailer 3
-
$11,047 NZD
$6,226 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$11,054 NZD
$6,230 USD
View
Retailer 5
-
$12,556 NZD
£5,572 GBP
View
Price last confirmed 7 days ago
Retailer 6
-
$12,747 NZD
$7,184 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$13,267 NZD
€7,121 EUR
View
Price last confirmed 7 days ago
Retailer 8
-
$17,989 NZD
£7,983 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
52fd0370-023f-4d40-a416-d453c9749b6d · Oct 20
$20,394 NZD
$11,494 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from $9,359 NZDSave up to $1,694 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
$9,359 NZD