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Cushion|Natural|GIA

3.50ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6555403099

Certificate GIA 6555403099

Diamond specifications and retailer prices

From $57,582 AUD
HK$316,000 HKD
As of October 30, 2026
Save $7,912 AUD (12%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $100,456 AUD at MOH London · As of October 21, 2026
View at MOH London

About this 3.5ct natural cushion diamond

This 3.5ct natural cushion sits in the three to five 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 6555403099. Listed at 14 retailers as of October 29, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.50
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.13°
Pavilion angle53.14°
OriginNatural
Grading LabGIA
CertificateGIA 6555403099
Dimensions10.88 × 7.78 × 5.42 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
10.88 mm7.78 mm3.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555403099
Side View
Table 67.0%Crown 32.13°Girdle: STK-THKPavilion 53.14°Culet: NoneDepth 69.7%

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: $100,456 AUD|Low: $57,205 AUD|High: $107,730 AUD|Avg: $70,569 AUD|-5.8%
MOH London
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
October 30, 2026
Retailer 12$57,582 AUD
Retailer 14$57,982 AUD
Retailer 7$58,036 AUD
Retailer 2$60,848 AUD
Retailer 9$60,944 AUD
Retailer 10$62,822 AUD
Retailer 4$65,494 AUD
Retailer 8$65,964 AUD
Retailer 13$68,429 AUD
Retailer 6$73,166 AUD
Retailer 5$76,205 AUD
Retailer 11$77,056 AUD
Retailer 3$77,521 AUD
MOH London$100,456 AUD

39 data points across 14 retailers

14 retailers$57,582 AUD to $65,494 AUD

A
Cheapest Retailer
-
$57,582 AUD
HK$316,000 HKD
Retailer 2
-
$57,982 AUD
$40,729 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$58,036 AUD
$40,767 USD
View
A
Retailer 4
-
$60,848 AUD
₹4,070,705 INR
View
Retailer 5
-
$60,944 AUD
$42,810 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$62,822 AUD
$44,129 USD
View
A
Retailer 7
-
$63,883 AUD
View
A
Retailer 8
-
$65,494 AUD
$46,006 USD
View
Final sale: no returns
Retailer 9
-
$65,964 AUD
£36,485 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
$68,429 AUD
$48,068 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$73,166 AUD
$51,395 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$76,205 AUD
$53,530 USD
View
Price last confirmed 11 days ago
Retailer 13
-
$77,521 AUD
$54,454 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
6E75E7458 · Oct 21
$100,456 AUD
£55,563 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from $57,582 AUDSave up to $7,912 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
3.50ct Cushion
$57,582 AUD