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Cushion|Natural|GIA

1.70ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 7556328508

Certificate GIA 7556328508

Diamond specifications and retailer prices

From $8,146 AUD
HK$44,600 HKD
As of November 1, 2026
Save $6,968 AUD (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,971 AUD at Queensmith · As of October 22, 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 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 7556328508. Listed at 19 retailers as of November 1, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556328508
Dimensions7.82 × 6.02 × 4.09 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Needle
Top View
7.82 mm6.02 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556328508
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.0%

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: Nov 1
Current: $16,971 AUD|Low: $8,146 AUD|High: $17,206 AUD|Avg: $11,198 AUD|+1.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 4$8,146 AUD
Retailer 2$8,619 AUD
Retailer 5$8,932 AUD
Retailer 13$9,400 AUD
Retailer 7$9,769 AUD
Retailer 14$9,960 AUD
Retailer 3$10,008 AUD
Retailer 12$10,010 AUD
Retailer 9$10,224 AUD
Retailer 6$10,615 AUD
Retailer 10$11,077 AUD
Retailer 8$11,848 AUD
Retailer 15$13,323 AUD
Retailer 11$15,113 AUD
Queensmith$16,971 AUD

25 data points across 15 retailers

19 retailers$8,146 AUD to $15,113 AUD

A
Cheapest Retailer
-
$8,146 AUD
HK$44,600 HKD
B+
Retailer 2
-
$8,619 AUD
₹575,280 INR
View
B+
Retailer 3
-
$8,932 AUD
$6,260 USD
View
B+
Retailer 4
-
$9,400 AUD
$6,588 USD
View
Retailer 5
-
$9,520 AUD
SGD 9,016 SGD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$9,769 AUD
SGD 9,252 SGD
View
B+
Retailer 7
-
$9,960 AUD
$6,980 USD
View
B
Retailer 8
-
$10,008 AUD
$7,014 USD
View
Final sale: no returns
B+
Retailer 9
-
$10,010 AUD
$7,015 USD
View
B
Retailer 10
-
$10,067 AUD
$7,055 USD
View
B+
Retailer 11
-
$10,224 AUD
£5,642 GBP
View
Retailer 12
-
$10,264 AUD
$7,193 USD
View
Price last confirmed 17 days ago
Retailer 13
-
$10,615 AUD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$11,077 AUD
$7,763 USD
View
B
Retailer 15
-
$11,295 AUD
View
B+
Retailer 16
-
$11,848 AUD
€7,908 EUR
View
B
Retailer 17
-
$13,323 AUD
ZAR 150,845 ZAR
View
B
Retailer 18
-
$15,113 AUD
£8,340 GBP
View
Most Expensive
Queensmith
7556328508 · Oct 22
$16,971 AUD
£9,365 GBP
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from $8,146 AUDSave up to $6,968 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
$8,146 AUD