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Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 1358142620

Certificate GIA 1358142620

Diamond specifications and retailer prices

From €7,316 EUR
$8,173 USD
As of October 31, 2026
Save €5,659 EUR (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €12,975 EUR at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1358142620. Listed at 20 retailers as of October 31, 2026, with prices from €7,316 to €12,975, a €5,659 spread on the same certified stone. MOH London lists it at €12,975. 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
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1358142620
Dimensions7.58 × 6.67 × 4.27 mm
L/W Ratio1.14
Culet sizeNone
Top View
7.58 mm6.67 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1358142620
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €12,975 EUR|Low: €6,924 EUR|High: €13,132 EUR|Avg: €9,635 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8€7,316 EUR
Retailer 6€8,308 EUR
Retailer 7€8,308 EUR
Retailer 3€9,092 EUR
Retailer 5€9,136 EUR
Retailer 2€9,972 EUR
Retailer 4€12,205 EUR
MOH London€12,975 EUR

44 data points across 8 retailers

20 retailers€7,316 EUR to €12,975 EUR

B+
Cheapest Retailer
-
€7,316 EUR
$8,173 USD
B
Retailer 2
-
€7,683 EUR
$8,583 USD
View
B
Retailer 3
-
€7,778 EUR
$8,690 USD
View
B
Retailer 4
-
€8,024 EUR
$8,964 USD
View
B
Retailer 5
-
€8,054 EUR
CA$12,498 CAD
View
B
Retailer 6
-
€8,235 EUR
$9,200 USD
View
B
Retailer 7
-
€8,308 EUR
$9,282 USD
View
B
Retailer 8
-
€8,308 EUR
$9,282 USD
View
Final sale: no returns
B
Retailer 9
-
€9,092 EUR
£7,998 GBP
View
Retailer 10
-
€9,136 EUR
A$15,703 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
€9,205 EUR
$10,284 USD
View
B
Retailer 12
-
€9,244 EUR
$10,327 USD
View
B
Retailer 13
-
€9,576 EUR
$10,698 USD
View
B
Retailer 14
-
€9,774 EUR
$10,920 USD
View
B
Retailer 15
-
€9,774 EUR
$10,920 USD
View
B
Retailer 16
-
€9,972 EUR
View
B
Retailer 17
-
€10,106 EUR
$11,290 USD
View
Retailer 18
-
€10,933 EUR
$12,214 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
€12,205 EUR
ZAR 220,288 ZAR
View
Most Expensive
B
MOH London
86971E802 · Nov 1
€12,975 EUR
£11,414 GBP
View
19 more retailers have this diamond
Prices start from €7,316 EURSave up to €5,659 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 Cushion
€7,316 EUR