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Cushion|Natural|GIA

1.70ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 2558551556

Certificate GIA 2558551556

Diamond specifications and retailer prices

From $7,506 CAD
HK$41,900 HKD
As of October 29, 2026
Save $8,633 CAD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,140 CAD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558551556. Listed at 15 retailers as of October 28, 2026, with prices from $7,506 to $16,140, a $8,633 spread on the same certified stone. Queensmith lists it at $16,140. 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
E
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558551556
Dimensions7.88 × 6.07 × 4.22 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cavity, Feather, Cloud, Needle
Top View
7.88 mm6.07 mm1.70 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558551556
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.4%

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: Oct 29
Current: $16,140 CAD|Low: $7,506 CAD|High: $16,246 CAD|Avg: $10,485 CAD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10$7,506 CAD
Retailer 5$8,074 CAD
Retailer 4$8,913 CAD
Retailer 12$9,316 CAD
Retailer 9$9,317 CAD
Retailer 6$9,566 CAD
Retailer 2$9,650 CAD
Retailer 3$10,320 CAD
Retailer 11$10,484 CAD
Retailer 7$11,012 CAD
Retailer 8$14,087 CAD
Queensmith$16,140 CAD

24 data points across 12 retailers

15 retailers$7,506 CAD to $16,140 CAD

A
Cheapest Retailer
-
$7,506 CAD
HK$41,900 HKD
A
Retailer 2
-
$8,074 CAD
₹549,418 INR
View
A
Retailer 3
-
$8,686 CAD
SGD 8,387 SGD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$8,913 CAD
SGD 8,606 SGD
View
B+
Retailer 5
-
$9,267 CAD
$6,621 USD
View
B+
Retailer 6
-
$9,316 CAD
$6,656 USD
View
Final sale: no returns
B+
Retailer 7
-
$9,317 CAD
$6,657 USD
View
A
Retailer 8
-
$9,566 CAD
£5,382 GBP
View
A
Retailer 9
-
$9,650 CAD
£5,429 GBP
View
B+
Retailer 10
-
$10,320 CAD
$7,374 USD
View
B+
Retailer 11
-
$10,433 CAD
A$11,468 AUD
View
B+
Retailer 12
-
$10,484 CAD
$7,491 USD
View
B+
Retailer 13
-
$11,012 CAD
€7,493 EUR
View
B+
Retailer 14
-
$14,087 CAD
£7,925 GBP
View
Most Expensive
B
Queensmith
2558551556 · Oct 28
$16,140 CAD
£9,080 GBP
View
14 more retailers have this diamond
Prices start from $7,506 CADSave up to $8,633 CAD

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
$7,506 CAD