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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 $500 CAD
$358 USD
As of November 1, 2026
Save $569 CAD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,221 CAD 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
Color
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: $1,221 CAD|Low: $500 CAD|High: $1,235 CAD|Avg: $881 CAD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7$500 CAD
Retailer 3$683 CAD
Retailer 6$724 CAD
Retailer 5$819 CAD
Retailer 8$846 CAD
Retailer 4$874 CAD
Retailer 2$1,069 CAD
MOH London$1,221 CAD

36 data points across 8 retailers

16 retailers$500 CAD to $1,069 CAD

B+
Cheapest Retailer
-
$500 CAD
$358 USD
B+
Retailer 2
-
$528 CAD
$378 USD
View
B+
Retailer 3
-
$555 CAD
SGD 537 SGD
View
B+
Retailer 4
-
$569 CAD
$407 USD
View
B+
Retailer 5
-
$589 CAD
$422 USD
View
B
Retailer 6
-
$683 CAD
£385 GBP
View
B
Retailer 7
-
$711 CAD
$509 USD
View
B
Retailer 8
-
$711 CAD
$509 USD
View
B
Retailer 9
-
$724 CAD
£408 GBP
View
B
Retailer 10
-
$761 CAD
$545 USD
View
B
Retailer 11
-
$819 CAD
ZAR 9,475 ZAR
View
Retailer 12
-
$846 CAD
A$932 AUD
View
Price last confirmed 28 days ago
B
Retailer 13
-
$874 CAD
€596 EUR
View
B
Retailer 14
-
$1,069 CAD
£603 GBP
View
Most Expensive
MOH London
5A6AADB02 · Nov 1
$1,221 CAD
£688 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $500 CADSave up to $569 CAD

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
$500 CAD