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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3555597052

Certificate GIA 3555597052

Diamond specifications and retailer prices

From $5,950 NZD
HK$26,200 HKD
As of November 1, 2026
Save $8,189 NZD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,139 NZD at NZ Jewellers · As of October 30, 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 3555597052. Listed at 9 retailers as of October 30, 2026, with prices from $5,950 to $14,139, a $8,189 spread on the same certified stone. NZ Jewellers lists it at $14,139. 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
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3555597052
Dimensions7.30 × 7.35 × 4.59 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle
Top View
7.30 mm7.35 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555597052
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 1
Current: $14,139 NZD|Low: $5,905 NZD|High: $15,193 NZD|Avg: $9,421 NZD|-6.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$5,950 NZD
Retailer 4$7,158 NZD
Retailer 8$7,572 NZD
Retailer 6$8,116 NZD
Retailer 7$8,116 NZD
Retailer 9$8,544 NZD
Retailer 3$9,179 NZD
Retailer 2$12,925 NZD
NZ Jewellers$14,139 NZD

36 data points across 9 retailers

9 retailers$5,950 NZD to $14,139 NZD

A
Cheapest Retailer
-
$5,950 NZD
HK$26,200 HKD
A
Retailer 2
-
$7,158 NZD
$4,034 USD
View
A
Retailer 3
-
$7,572 NZD
SGD 5,767 SGD
View
A
Retailer 4
-
$8,116 NZD
$4,574 USD
View
A
Retailer 5
-
$8,116 NZD
$4,574 USD
View
A
Retailer 6
-
$8,544 NZD
A$7,408 AUD
View
A
Retailer 7
-
$9,179 NZD
€4,927 EUR
View
B+
Retailer 8
-
$12,925 NZD
£5,736 GBP
View
Most Expensive
B+
NZ Jewellers
140a0751-b25e-4aa4-ae07-854da3af5fbc · Oct 30
$14,139 NZD
$7,969 USD
View
8 more retailers have this diamond
Prices start from $5,950 NZDSave up to $8,189 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
$5,950 NZD