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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 $6,735 USD
£5,303 GBP
As of November 3, 2026
Save $3,612 USD (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $10,347 USD at MOH London · As of November 2, 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 2, 2026, with prices from $6,735 to $10,347, a $3,612 spread on the same certified stone. MOH London lists it at $10,347. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $10,347 USD|Low: $4,862 USD|High: $10,471 USD|Avg: $7,086 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 5$4,862 USD
Retailer 6$5,765 USD
Retailer 2$6,735 USD
Retailer 4$6,816 USD
Retailer 3$7,672 USD
MOH London$10,347 USD

33 data points across 6 retailers

4 retailers$6,735 USD to $10,347 USD

B+
Cheapest Retailer
-
$6,735 USD
£5,303 GBP
Retailer 2
-
$6,816 USD
A$10,487 AUD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$7,672 USD
€7,307 EUR
View
Most Expensive
B
MOH London
815FEE137 · Nov 2
$10,347 USD
£8,147 GBP
View
3 more retailers have this diamond
Prices start from $6,735 USDSave up to $3,612 USD

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
$6,735 USD