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Round|Natural|GIA

1.55ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6551332767

Certificate GIA 6551332767

Diamond specifications and retailer prices

From €1,414 EUR
As of November 4, 2026
Save €2,525 EUR (64%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €3,939 EUR at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551332767. Listed at 8 retailers as of November 4, 2026, with prices from €1,414 to €3,939, a €2,525 spread on the same certified stone. NZ Jewellers lists it at €3,939. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551332767
Dimensions7.36 × 7.42 × 4.62 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle, Indented Natural
Top View
7.36 mm7.42 mm1.55 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6551332767
Side View
Table 59.0%CrownGirdlePavilionCuletDepth 62.5%

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 4
Current: €3,939 EUR|Low: €1,402 EUR|High: €4,138 EUR|Avg: €2,226 EUR|-4.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4€1,414 EUR
Retailer 6€1,719 EUR
Retailer 7€1,884 EUR
Retailer 5€1,971 EUR
Retailer 9€1,979 EUR
Retailer 2€2,052 EUR
Retailer 8€2,174 EUR
Retailer 3€2,556 EUR
NZ Jewellers€3,939 EUR

42 data points across 9 retailers

8 retailers€1,414 EUR to €3,939 EUR

A
Cheapest Retailer
-
€1,414 EUR
B+
Retailer 2
-
€1,719 EUR
View
B+
Retailer 3
-
€1,884 EUR
View
B+
Retailer 4
-
€1,971 EUR
View
B+
Retailer 5
-
€2,052 EUR
View
B+
Retailer 6
-
€2,174 EUR
View
B+
Retailer 7
-
€2,556 EUR
View
Most Expensive
B
NZ Jewellers
76b289ab-a5c6-4a5f-a7d7-07e20680fbd6 · Nov 5
€3,939 EUR
$4,421 USD
View
7 more retailers have this diamond
Prices start from €1,414 EURSave up to €2,525 EUR

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
€1,414 EUR