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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2528386444

Certificate GIA 2528386444

Diamond specifications and retailer prices

From €2,854 EUR
As of November 6, 2026
Save €1,660 EUR (37%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,515 EUR at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

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 2528386444. Listed at 10 retailers as of November 5, 2026, with prices from €2,854 to €4,515, a €1,660 spread on the same certified stone. Cape Diamonds lists it at €4,515. 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
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2528386444
Dimensions7.57 × 7.62 × 4.78 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.57 mm7.62 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2528386444
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,515 EUR|Low: €2,831 EUR|High: €4,546 EUR|Avg: €3,586 EUR|+1.5%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4€2,854 EUR
Retailer 2€2,980 EUR
Retailer 5€3,326 EUR
Retailer 7€3,469 EUR
Retailer 6€3,708 EUR
Retailer 3€4,159 EUR
Cape Diamonds€4,515 EUR

44 data points across 7 retailers

10 retailers€2,854 EUR to €4,515 EUR

B+
Cheapest Retailer
-
€2,854 EUR
B+
Retailer 2
-
€2,980 EUR
View
B+
Retailer 3
-
€3,326 EUR
View
B+
Retailer 4
-
€3,469 EUR
View
B
Retailer 5
-
€3,520 EUR
View
Retailer 6
-
€3,698 EUR
View
Price last confirmed 21 days ago
B
Retailer 7
-
€3,708 EUR
View
B
Retailer 8
-
€3,831 EUR
View
B
Retailer 9
-
€4,159 EUR
View
Most Expensive
B
Cape Diamonds
cert_2528386444 · Nov 5
€4,515 EUR
ZAR 81,429 ZAR
View
9 more retailers have this diamond
Prices start from €2,854 EURSave up to €1,660 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.

B+
1.70ct Round
€2,854 EUR