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Cushion|Natural|GIA

1.70ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 2544975782

Certificate GIA 2544975782

Diamond specifications and retailer prices

From $8,728 AUD
HK$47,900 HKD
As of October 30, 2026
Save $8,773 AUD (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $17,501 AUD 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 2544975782. Listed at 14 retailers as of October 28, 2026, with prices from $8,728 to $17,501, a $8,773 spread on the same certified stone. Queensmith lists it at $17,501. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2544975782
Dimensions8.06 × 6.11 × 3.99 mm
L/W Ratio1.32
Top View
8.06 mm6.11 mm1.70 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2544975782
Side View
Table 64.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 65.2%

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 30
Current: $17,501 AUD|Low: $8,728 AUD|High: $17,664 AUD|Avg: $11,803 AUD|+0.7%
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 9$8,728 AUD
Retailer 2$9,339 AUD
Retailer 3$10,396 AUD
Retailer 11$10,549 AUD
Retailer 10$10,697 AUD
Retailer 8$10,698 AUD
Retailer 4$10,713 AUD
Retailer 5$10,933 AUD
Retailer 12$11,835 AUD
Retailer 7$12,646 AUD
Retailer 6$16,239 AUD
Queensmith$17,501 AUD

29 data points across 12 retailers

14 retailers$8,728 AUD to $17,501 AUD

A
Cheapest Retailer
-
$8,728 AUD
HK$47,900 HKD
A
Retailer 2
-
$9,339 AUD
₹624,774 INR
View
Retailer 3
-
$10,131 AUD
SGD 9,617 SGD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$10,396 AUD
SGD 9,868 SGD
View
B+
Retailer 5
-
$10,549 AUD
$7,410 USD
View
B+
Retailer 6
-
$10,697 AUD
$7,514 USD
View
Final sale: no returns
B+
Retailer 7
-
$10,698 AUD
$7,515 USD
View
B+
Retailer 8
-
$10,713 AUD
$7,525 USD
View
B+
Retailer 9
-
$10,933 AUD
£6,047 GBP
View
B+
Retailer 10
-
$11,835 AUD
$8,313 USD
View
B+
Retailer 11
-
$12,055 AUD
View
B+
Retailer 12
-
$12,646 AUD
€8,460 EUR
View
B
Retailer 13
-
$16,239 AUD
£8,982 GBP
View
Most Expensive
B
Queensmith
2544975782 · Oct 28
$17,501 AUD
£9,680 GBP
View
13 more retailers have this diamond
Prices start from $8,728 AUDSave up to $8,773 AUD

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
$8,728 AUD