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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 $6,874 SGD
HK$41,900 HKD
As of October 29, 2026
Save $7,906 SGD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,780 SGD 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 $6,874 to $14,780, a $7,906 spread on the same certified stone. Queensmith lists it at $14,780. 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: $14,780 SGD|Low: $6,874 SGD|High: $14,878 SGD|Avg: $9,601 SGD|+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$6,874 SGD
Retailer 5$7,394 SGD
Retailer 4$8,162 SGD
Retailer 12$8,531 SGD
Retailer 9$8,532 SGD
Retailer 6$8,760 SGD
Retailer 2$8,837 SGD
Retailer 3$9,451 SGD
Retailer 11$9,601 SGD
Retailer 7$10,084 SGD
Retailer 8$12,900 SGD
Queensmith$14,780 SGD

24 data points across 12 retailers

15 retailers$6,874 SGD to $14,780 SGD

A
Cheapest Retailer
-
$6,874 SGD
HK$41,900 HKD
A
Retailer 2
-
$7,394 SGD
₹549,418 INR
View
A
Retailer 3
-
$7,955 SGD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$8,162 SGD
View
B+
Retailer 5
-
$8,486 SGD
$6,621 USD
View
B+
Retailer 6
-
$8,531 SGD
$6,656 USD
View
Final sale: no returns
B+
Retailer 7
-
$8,532 SGD
$6,657 USD
View
A
Retailer 8
-
$8,760 SGD
£5,382 GBP
View
A
Retailer 9
-
$8,837 SGD
£5,429 GBP
View
B+
Retailer 10
-
$9,451 SGD
$7,374 USD
View
B+
Retailer 11
-
$9,554 SGD
A$11,468 AUD
View
B+
Retailer 12
-
$9,601 SGD
$7,491 USD
View
B+
Retailer 13
-
$10,084 SGD
€7,493 EUR
View
B+
Retailer 14
-
$12,900 SGD
£7,925 GBP
View
Most Expensive
B
Queensmith
2558551556 · Oct 28
$14,780 SGD
£9,080 GBP
View
14 more retailers have this diamond
Prices start from $6,874 SGDSave up to $7,906 SGD

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
$6,874 SGD