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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5553304658

Certificate GIA 5553304658

Diamond specifications and retailer prices

From $9,392 NZD
£4,161 GBP
As of November 3, 2026
Save $8,177 NZD (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $17,569 NZD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553304658. Listed at 7 retailers as of November 2, 2026, with prices from $9,392 to $17,569, a $8,177 spread on the same certified stone. NZ Jewellers lists it at $17,569. 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

1.55
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5553304658
Dimensions7.33 × 7.38 × 4.63 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud, Crystal, Needle
Top View
7.33 mm7.38 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553304658
Side View
Table 58.0%Crown 35°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.9%

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 3
Current: $17,569 NZD|Low: $8,558 NZD|High: $18,884 NZD|Avg: $11,613 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 11$8,558 NZD
Retailer 10$9,270 NZD
Retailer 2$9,392 NZD
Retailer 9$10,429 NZD
Retailer 6$10,504 NZD
Retailer 3$10,630 NZD
Retailer 12$10,859 NZD
Retailer 7$11,476 NZD
Retailer 8$11,993 NZD
Retailer 5$15,633 NZD
NZ Jewellers$17,569 NZD
Retailer 4$18,884 NZD

33 data points across 12 retailers

7 retailers$9,392 NZD to $17,569 NZD

Retailer 1
-
$8,558 NZD
$4,815 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$9,392 NZD
£4,161 GBP
View
B+
Retailer 3
-
$10,504 NZD
$5,910 USD
View
B+
Retailer 4
-
$11,476 NZD
£5,084 GBP
View
B+
Retailer 5
-
$11,993 NZD
$6,748 USD
View
B
Retailer 6
-
$15,633 NZD
£6,926 GBP
View
Most Expensive
B
NZ Jewellers
7f78dfab-a828-4522-b23c-bee306c234cf · Nov 2
$17,569 NZD
$9,885 USD
View
6 more retailers have this diamond
Prices start from $9,392 NZDSave up to $8,177 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
1.55ct Round
$9,392 NZD