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Cushion|Natural|GIA

0.30ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6551537251

Certificate GIA 6551537251

Diamond specifications and retailer prices

From HK$2,919 HKD
$372 USD
As of October 29, 2026
Save HK$3,369 HKD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$6,287 HKD 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 HK$2,919 to HK$6,287, a HK$3,369 spread on the same certified stone. MOH London lists it at HK$6,287. 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: HK$6,287 HKD|Low: HK$2,895 HKD|High: HK$6,287 HKD|Avg: HK$4,423 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7HK$2,919 HKD
Retailer 8HK$3,123 HKD
Retailer 3HK$3,507 HKD
Retailer 6HK$3,714 HKD
Retailer 5HK$4,201 HKD
Retailer 9HK$4,309 HKD
Retailer 4HK$5,017 HKD
Retailer 2HK$5,484 HKD
MOH LondonHK$6,287 HKD

36 data points across 9 retailers

9 retailersHK$2,919 HKD to HK$6,287 HKD

B+
Cheapest Retailer
-
HK$2,919 HKD
$372 USD
B+
Retailer 2
-
HK$3,123 HKD
$398 USD
View
B
Retailer 3
-
HK$3,507 HKD
£352 GBP
View
B+
Retailer 4
-
HK$3,714 HKD
£373 GBP
View
B
Retailer 5
-
HK$4,201 HKD
ZAR 8,650 ZAR
View
Retailer 6
-
HK$4,309 HKD
A$845 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
HK$5,017 HKD
€609 EUR
View
B
Retailer 8
-
HK$5,484 HKD
£550 GBP
View
Most Expensive
B
MOH London
596E3C07B · Oct 29
HK$6,287 HKD
£631 GBP
View
8 more retailers have this diamond
Prices start from HK$2,919 HKDSave up to HK$3,369 HKD

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
HK$2,919 HKD