CaratHunter
Plans
Cushion|Natural|GIA

0.30ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6551537251

Certificate GIA 6551537251

Diamond specifications and retailer prices

From $661 NZD
$372 USD
As of October 29, 2026
Save $763 NZD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,424 NZD 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 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 6551537251. Listed at 9 retailers as of October 29, 2026, with prices from $661 to $1,424, a $763 spread on the same certified stone. MOH London lists it at $1,424. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551537251
Dimensions3.70 × 3.66 × 2.59 mm
L/W Ratio1.01
Key to symbols
Feather
Top View
3.70 mm3.66 mm0.30 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6551537251
Side View
Table 65.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,424 NZD|Low: $656 NZD|High: $1,424 NZD|Avg: $1,002 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$661 NZD
Retailer 8$707 NZD
Retailer 3$794 NZD
Retailer 6$841 NZD
Retailer 5$952 NZD
Retailer 9$976 NZD
Retailer 4$1,136 NZD
Retailer 2$1,242 NZD
MOH London$1,424 NZD

36 data points across 9 retailers

9 retailers$661 NZD to $1,424 NZD

B+
Cheapest Retailer
-
$661 NZD
$372 USD
B+
Retailer 2
-
$707 NZD
$398 USD
View
B
Retailer 3
-
$794 NZD
£352 GBP
View
B+
Retailer 4
-
$841 NZD
£373 GBP
View
B
Retailer 5
-
$952 NZD
ZAR 8,650 ZAR
View
Retailer 6
-
$976 NZD
A$845 AUD
View
Price last confirmed 30 days ago
B
Retailer 7
-
$1,136 NZD
€609 EUR
View
B
Retailer 8
-
$1,242 NZD
£550 GBP
View
Most Expensive
B
MOH London
596E3C07B · Oct 29
$1,424 NZD
£631 GBP
View
8 more retailers have this diamond
Prices start from $661 NZDSave up to $763 NZD

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.

B+
0.30ct Cushion
$661 NZD