CaratHunter
Plans
Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1545692555

Certificate GIA 1545692555

Diamond specifications and retailer prices

From €3,015 EUR
As of November 6, 2026
Save €3,321 EUR (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €6,336 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 1545692555. Listed at 14 retailers as of November 4, 2026, with prices from €3,015 to €6,336, a €3,321 spread on the same certified stone. MOH London lists it at €6,336. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545692555
Dimensions8.17 × 6.09 × 4.13 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural
Top View
8.17 mm6.09 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1545692555
Side View
Table 63.0%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: €6,336 EUR|Low: €3,015 EUR|High: €6,967 EUR|Avg: €4,367 EUR|-9.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3€3,015 EUR
Retailer 2€3,192 EUR
Retailer 11€3,568 EUR
Retailer 10€3,807 EUR
Retailer 6€3,838 EUR
Retailer 9€3,859 EUR
Retailer 7€4,016 EUR
Retailer 12€4,102 EUR
Retailer 4€4,312 EUR
Retailer 5€4,488 EUR
Retailer 8€4,867 EUR
MOH London€6,336 EUR

29 data points across 12 retailers

14 retailers€3,015 EUR to €6,336 EUR

A
Cheapest Retailer
-
€3,015 EUR
A
Retailer 2
-
€3,192 EUR
View
B+
Retailer 3
-
€3,568 EUR
View
B+
Retailer 4
-
€3,807 EUR
View
B+
Retailer 5
-
€3,838 EUR
View
B+
Retailer 6
-
€3,859 EUR
View
B+
Retailer 7
-
€3,990 EUR
View
B+
Retailer 8
-
€4,016 EUR
View
B+
Retailer 9
-
€4,102 EUR
View
B+
Retailer 10
-
€4,236 EUR
View
Retailer 11
-
€4,312 EUR
View
Price last confirmed 22 days ago
B
Retailer 12
-
€4,488 EUR
View
B+
Retailer 13
-
€4,867 EUR
View
Most Expensive
B
MOH London
43B26F09F · Nov 4
€6,336 EUR
£5,570 GBP
View
13 more retailers have this diamond
Prices start from €3,015 EURSave up to €3,321 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
€3,015 EUR