CaratHunter
Plans
Cushion|Natural|GIA

0.30ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2557052790

Certificate GIA 2557052790

Diamond specifications and retailer prices

From $522 AUD
$367 USD
As of October 27, 2026
Save $760 AUD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,282 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.3ct natural cushion diamond

This 0.3ct natural cushion sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557052790. Listed at 17 retailers as of October 27, 2026, with prices from $522 to $1,282, a $760 spread on the same certified stone. MOH London lists it at $1,282. 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

0.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle37.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557052790
Dimensions3.81 × 3.73 × 2.61 mm
L/W Ratio1.02
Top View
3.81 mm3.73 mm0.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557052790
Side View
Table 65.0%Crown 32°Girdle: MED-VTKPavilion 37.2°Culet: NoneDepth 70.0%

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: Oct 27
Current: $1,282 AUD|Low: $329 AUD|High: $1,289 AUD|Avg: $645 AUD|+20.1%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 5$329 AUD
Retailer 6$382 AUD
Retailer 8$412 AUD
Retailer 11$481 AUD
Retailer 4$522 AUD
Retailer 3$539 AUD
Retailer 10$572 AUD
Retailer 17$576 AUD
Retailer 2$609 AUD
Retailer 9$631 AUD
Retailer 14$676 AUD
Retailer 7$731 AUD
Retailer 19$751 AUD
Retailer 15$774 AUD
Retailer 18$825 AUD
Retailer 16$874 AUD
Retailer 13$1,023 AUD
Retailer 12$1,124 AUD
MOH London$1,282 AUD

31 data points across 19 retailers

17 retailers$522 AUD to $1,282 AUD

A
Retailer 1
-
$329 AUD
₹22,046 INR
Price last confirmed 15 days ago
A
Retailer 2
-
$382 AUD
HK$2,100 HKD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$412 AUD
$290 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$481 AUD
SGD 457 SGD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$522 AUD
$367 USD
View
Final sale: no returns
A
Retailer 6
-
$539 AUD
$379 USD
View
A
Retailer 7
-
$576 AUD
$405 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$609 AUD
$428 USD
View
B+
Retailer 9
-
$676 AUD
£374 GBP
View
B+
Retailer 10
-
$731 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$751 AUD
$528 USD
View
B+
Retailer 12
-
$774 AUD
£429 GBP
View
B
Retailer 13
-
$825 AUD
$580 USD
View
B
Retailer 14
-
$874 AUD
ZAR 9,933 ZAR
View
B
Retailer 15
-
$1,023 AUD
€685 EUR
View
B
Retailer 16
-
$1,124 AUD
£623 GBP
View
Most Expensive
B
MOH London
C3FF5DD05 · Oct 29
$1,282 AUD
£710 GBP
View
16 more retailers have this diamond
Prices start from $522 AUDSave up to $760 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
0.30ct Cushion
$522 AUD