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Marquise|Natural|GIA

0.30ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6552330160

Certificate GIA 6552330160

Diamond specifications and retailer prices

From $603 CAD
$432 USD
As of October 29, 2026
Save $476 CAD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,231 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 G 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 6552330160. Listed at 11 retailers as of October 29, 2026, with a 79% 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552330160
Dimensions6.65 × 3.50 × 2.18 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot
Top View
6.65 mm3.50 mm0.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552330160
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.1%

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: $1,231 CAD|Low: $587 CAD|High: $2,090 CAD|Avg: $976 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$603 CAD
Retailer 2$629 CAD
Retailer 4$712 CAD
Retailer 10$742 CAD
Retailer 5$755 CAD
Retailer 8$839 CAD
Retailer 6$992 CAD
Retailer 3$1,079 CAD
MOH London$1,231 CAD
Retailer 7$2,090 CAD

27 data points across 10 retailers

11 retailers$603 CAD to $1,079 CAD

B+
Cheapest Retailer
-
$603 CAD
$432 USD
B+
Retailer 2
-
$629 CAD
$450 USD
View
B
Retailer 3
-
$712 CAD
£401 GBP
View
B
Retailer 4
-
$742 CAD
£418 GBP
View
B
Retailer 5
-
$755 CAD
$541 USD
View
B
Retailer 6
-
$839 CAD
ZAR 9,702 ZAR
View
Retailer 7
-
$860 CAD
A$947 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$992 CAD
€676 EUR
View
B
Retailer 9
-
$1,079 CAD
£608 GBP
View
Most Expensive
MOH London
13E960722 · Nov 1
$1,231 CAD
£694 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $603 CADSave up to $476 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
$603 CAD