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Marquise|Natural|GIA

1.30ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6551839460

Certificate GIA 6551839460

Diamond specifications and retailer prices

From $9,706 AUD
As of November 7, 2026
Save $5,312 AUD (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $15,018 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551839460. Listed at 4 retailers as of November 4, 2026, with prices from $9,706 to $15,018, a $5,312 spread on the same certified stone. MOH London lists it at $15,018. 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

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551839460
Dimensions10.78 × 5.74 × 3.72 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural, Extra Facet
Top View
10.78 mm5.74 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551839460
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.7%

Caratlytics Score

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

Price History

Last verified: Nov 7
Current: $15,018 AUD|Low: $7,076 AUD|High: $15,240 AUD|Avg: $10,301 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5$7,076 AUD
Retailer 6$8,390 AUD
Retailer 2$9,706 AUD
Retailer 4$9,920 AUD
Retailer 3$11,122 AUD
MOH London$15,018 AUD

37 data points across 6 retailers

4 retailers$9,706 AUD to $15,018 AUD

B+
Cheapest Retailer
-
$9,706 AUD
Retailer 2
-
$9,920 AUD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$11,122 AUD
View
Most Expensive
B
MOH London
815FEE137 · Nov 4
$15,018 AUD
£8,125 GBP
View
3 more retailers have this diamond
Prices start from $9,706 AUDSave up to $5,312 AUD

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+
1.30ct Marquise
$9,706 AUD