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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 $9,549 NZD
HK$41,900 HKD
As of October 29, 2026
Save $10,983 NZD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,532 NZD 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 $9,549 to $20,532, a $10,983 spread on the same certified stone. Queensmith lists it at $20,532. 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
Colour
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: $20,532 NZD|Low: $9,549 NZD|High: $20,668 NZD|Avg: $13,352 NZD|+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 30, 2026
Retailer 10$9,549 NZD
Retailer 6$10,272 NZD
Retailer 4$11,339 NZD
Retailer 12$11,851 NZD
Retailer 9$11,853 NZD
Retailer 2$12,136 NZD
Retailer 5$12,313 NZD
Retailer 3$13,129 NZD
Retailer 11$13,338 NZD
Retailer 7$14,008 NZD
Retailer 8$17,920 NZD
Queensmith$20,532 NZD

25 data points across 12 retailers

15 retailers$9,549 NZD to $20,532 NZD

A
Cheapest Retailer
-
$9,549 NZD
HK$41,900 HKD
A
Retailer 2
-
$10,272 NZD
₹549,418 INR
View
Retailer 3
-
$11,050 NZD
SGD 8,387 SGD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$11,339 NZD
SGD 8,606 SGD
View
B+
Retailer 5
-
$11,789 NZD
$6,621 USD
View
B+
Retailer 6
-
$11,851 NZD
$6,656 USD
View
Final sale: no returns
B+
Retailer 7
-
$11,853 NZD
$6,657 USD
View
A
Retailer 8
-
$12,136 NZD
£5,367 GBP
View
A
Retailer 9
-
$12,313 NZD
£5,445 GBP
View
B+
Retailer 10
-
$13,129 NZD
$7,374 USD
View
B+
Retailer 11
-
$13,272 NZD
A$11,468 AUD
View
B+
Retailer 12
-
$13,338 NZD
$7,491 USD
View
B+
Retailer 13
-
$14,008 NZD
€7,493 EUR
View
B+
Retailer 14
-
$17,920 NZD
£7,925 GBP
View
Most Expensive
B
Queensmith
2558551556 · Oct 28
$20,532 NZD
£9,080 GBP
View
14 more retailers have this diamond
Prices start from $9,549 NZDSave up to $10,983 NZD

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
$9,549 NZD