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Marquise|Natural|GIA

0.30ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 1242031130

Certificate GIA 1242031130

Diamond specifications and retailer prices

From HK$2,809 HKD
$358 USD
As of November 1, 2026
Save HK$3,198 HKD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$6,855 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise 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 1242031130. Listed at 16 retailers as of November 1, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242031130
Dimensions7.13 × 3.40 × 2.14 mm
L/W Ratio2.10
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.13 mm3.40 mm0.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242031130
Side View
Table 59.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 62.8%

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: Nov 1
Current: HK$6,855 HKD|Low: HK$2,809 HKD|High: HK$6,935 HKD|Avg: HK$4,940 HKD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7HK$2,809 HKD
Retailer 4HK$3,866 HKD
Retailer 6HK$4,068 HKD
Retailer 5HK$4,602 HKD
Retailer 8HK$4,754 HKD
Retailer 3HK$4,902 HKD
Retailer 2HK$6,006 HKD
MOH LondonHK$6,855 HKD

37 data points across 8 retailers

16 retailersHK$2,809 HKD to HK$6,006 HKD

B+
Cheapest Retailer
-
HK$2,809 HKD
$358 USD
B+
Retailer 2
-
HK$2,966 HKD
$378 USD
View
B+
Retailer 3
-
HK$3,118 HKD
SGD 537 SGD
View
B+
Retailer 4
-
HK$3,193 HKD
$407 USD
View
B+
Retailer 5
-
HK$3,311 HKD
$422 USD
View
B
Retailer 6
-
HK$3,866 HKD
£388 GBP
View
B
Retailer 7
-
HK$3,993 HKD
$509 USD
View
B
Retailer 8
-
HK$3,994 HKD
$509 USD
View
B
Retailer 9
-
HK$4,068 HKD
£408 GBP
View
B
Retailer 10
-
HK$4,273 HKD
$545 USD
View
B
Retailer 11
-
HK$4,602 HKD
ZAR 9,475 ZAR
View
Retailer 12
-
HK$4,754 HKD
A$932 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
HK$4,902 HKD
€595 EUR
View
B
Retailer 14
-
HK$6,006 HKD
£603 GBP
View
Most Expensive
MOH London
5A6AADB02 · Nov 1
HK$6,855 HKD
£688 GBP
View
Price under review
14 more retailers have this diamond
Prices start from HK$2,809 HKDSave up to HK$3,198 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 Marquise
HK$2,809 HKD