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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2557529237

Certificate GIA 2557529237

Diamond specifications and retailer prices

From €3,416 EUR
As of November 6, 2026
Save €3,815 EUR (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €7,231 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557529237. Listed at 14 retailers as of November 4, 2026, with prices from €3,416 to €7,231, a €3,815 spread on the same certified stone. MOH London lists it at €7,231. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557529237
Dimensions8.19 × 6.11 × 4.14 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Pinpoint
Top View
8.19 mm6.11 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557529237
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.8%

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 6
Current: €7,231 EUR|Low: €3,416 EUR|High: €7,398 EUR|Avg: €4,863 EUR|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9€3,416 EUR
Retailer 2€3,592 EUR
Retailer 7€4,090 EUR
Retailer 3€4,416 EUR
Retailer 5€4,483 EUR
Retailer 10€4,688 EUR
Retailer 8€4,803 EUR
Retailer 4€5,123 EUR
Retailer 6€5,554 EUR
MOH London€7,231 EUR

25 data points across 10 retailers

14 retailers€3,416 EUR to €7,231 EUR

A
Cheapest Retailer
-
€3,416 EUR
B+
Retailer 2
-
€3,592 EUR
View
B+
Retailer 3
-
€4,090 EUR
View
B+
Retailer 4
-
€4,230 EUR
View
B+
Retailer 5
-
€4,232 EUR
View
B+
Retailer 6
-
€4,416 EUR
View
B
Retailer 7
-
€4,452 EUR
View
B+
Retailer 8
-
€4,483 EUR
View
Retailer 9
-
€4,596 EUR
View
Price last confirmed 22 days ago
B
Retailer 10
-
€4,688 EUR
View
B+
Retailer 11
-
€4,803 EUR
View
B
Retailer 12
-
€5,123 EUR
View
B
Retailer 13
-
€5,554 EUR
View
Most Expensive
B
MOH London
CDD8FB650 · Nov 4
€7,231 EUR
£6,357 GBP
View
13 more retailers have this diamond
Prices start from €3,416 EURSave up to €3,815 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 Cushion
€3,416 EUR