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Cushion|Natural|GIA

0.30ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 6515031583

Certificate GIA 6515031583

Diamond specifications and retailer prices

From $413 AUD
₹27,625 INR
As of November 2, 2026
Save $692 AUD (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,707 AUD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6515031583. Listed at 8 retailers as of October 31, 2026, with a 168% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.30
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515031583
Dimensions6.67 × 3.54 × 2.11 mm
L/W Ratio1.88
Top View
6.67 mm3.54 mm0.30 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515031583
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.6%

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 2
Current: $1,707 AUD|Low: $412 AUD|High: $1,727 AUD|Avg: $985 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$413 AUD
Retailer 6$747 AUD
Retailer 3$926 AUD
Retailer 5$1,012 AUD
Retailer 4$1,105 AUD
Retailer 7$1,111 AUD
MOH London$1,707 AUD

41 data points across 7 retailers

8 retailers$413 AUD to $1,105 AUD

A
Cheapest Retailer
-
$413 AUD
₹27,625 INR
B
Retailer 2
-
$747 AUD
$525 USD
View
B
Retailer 3
-
$926 AUD
£512 GBP
View
B
Retailer 4
-
$1,012 AUD
£560 GBP
View
C
Retailer 5
-
$1,035 AUD
$727 USD
View
B
Retailer 6
-
$1,105 AUD
€739 EUR
View
Retailer 7
-
$1,111 AUD
View
Price last confirmed 29 days ago
Most Expensive
MOH London
C71A16F01 · Nov 1
$1,707 AUD
£944 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $413 AUDSave up to $692 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
$413 AUD