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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2488555300

Certificate GIA 2488555300

Diamond specifications and retailer prices

From €2,629 EUR
As of November 1, 2026
Save €3,189 EUR (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €5,818 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct 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 2488555300. Listed at 10 retailers as of November 1, 2026, with prices from €2,629 to €5,818, a €3,189 spread on the same certified stone. NZ Jewellers lists it at €5,818. 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

1.70
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2488555300
Dimensions7.61 × 7.54 × 4.73 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.61 mm7.54 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2488555300
Side View
Table 58.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 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 1
Current: €5,818 EUR|Low: €2,629 EUR|High: €5,818 EUR|Avg: €3,392 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10€2,629 EUR
Retailer 9€2,685 EUR
Retailer 8€2,920 EUR
Retailer 5€3,026 EUR
Retailer 7€3,026 EUR
Retailer 4€3,142 EUR
Retailer 6€3,491 EUR
Retailer 3€3,646 EUR
Retailer 2€4,076 EUR
NZ Jewellers€5,818 EUR

26 data points across 10 retailers

10 retailers€2,629 EUR to €5,818 EUR

A
Cheapest Retailer
-
€2,629 EUR
B+
Retailer 2
-
€2,685 EUR
View
B+
Retailer 3
-
€2,920 EUR
View
Retailer 4
-
€3,026 EUR
View
Price last confirmed 8 days ago
B+
Retailer 5
-
€3,026 EUR
View
B+
Retailer 6
-
€3,142 EUR
View
B
Retailer 7
-
€3,491 EUR
View
B
Retailer 8
-
€3,646 EUR
View
B
Retailer 9
-
€4,076 EUR
View
Most Expensive
C
NZ Jewellers
615cdd80-53c7-4ec5-aaeb-bed7f5a2e6cb · Nov 5
€5,818 EUR
$6,496 USD
View
9 more retailers have this diamond
Prices start from €2,629 EURSave up to €3,189 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
1.70ct Round
€2,629 EUR