Cushion|Natural|GIA

0.30ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2557052790

Certificate GIA 2557052790

Diamond specifications and retailer prices

From $367 USD
As of October 27, 2026
Save $535 USD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $902 USD 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 $367 to $902, a $535 spread on the same certified stone. MOH London lists it at $902. 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
Color
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: $902 USD|Low: $231 USD|High: $907 USD|Avg: $454 USD|+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$231 USD
Retailer 6$269 USD
Retailer 8$290 USD
Retailer 11$338 USD
Retailer 4$367 USD
Retailer 3$379 USD
Retailer 10$402 USD
Retailer 17$405 USD
Retailer 2$428 USD
Retailer 9$444 USD
Retailer 14$475 USD
Retailer 7$514 USD
Retailer 19$528 USD
Retailer 15$545 USD
Retailer 18$580 USD
Retailer 16$615 USD
Retailer 13$719 USD
Retailer 12$791 USD
MOH London$902 USD

31 data points across 19 retailers

17 retailers$367 USD to $902 USD

A
Retailer 1
-
$231 USD
₹22,046 INR
Price last confirmed 15 days ago
A
Retailer 2
-
$269 USD
HK$2,100 HKD
View
Price last confirmed 24 days ago
A
Retailer 3
-
$290 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$338 USD
SGD 457 SGD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$367 USD
View
Final sale: no returns
A
Retailer 6
-
$379 USD
View
A
Retailer 7
-
$405 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$428 USD
View
B+
Retailer 9
-
$475 USD
£374 GBP
View
B+
Retailer 10
-
$514 USD
A$791 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$528 USD
View
B+
Retailer 12
-
$545 USD
£429 GBP
View
B
Retailer 13
-
$580 USD
View
B
Retailer 14
-
$615 USD
ZAR 9,933 ZAR
View
B
Retailer 15
-
$719 USD
€685 EUR
View
B
Retailer 16
-
$791 USD
£623 GBP
View
Most Expensive
B
MOH London
C3FF5DD05 · Oct 29
$902 USD
£710 GBP
View
16 more retailers have this diamond
Prices start from $367 USDSave up to $535 USD

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
$367 USD