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Marquise|Natural|GIA

1.21ct F VS1 Marquise Natural Diamond

EX • F/VS1 • GIA 2557139248

Certificate GIA 2557139248

Diamond specifications and retailer prices

From $11,678 AUD
As of November 4, 2026
Save $6,569 AUD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,247 AUD at Steven Stone · As of November 7, 2026
View at Steven Stone

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557139248. Listed at 15 retailers as of November 4, 2026, with prices from $11,678 to $18,247, a $6,569 spread on the same certified stone. Steven Stone lists it at $18,247. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.13°
Pavilion angle40.99°
OriginNatural
Grading LabGIA
CertificateGIA 2557139248
Dimensions10.82 × 5.63 × 3.52 mm
L/W Ratio1.92
Top View
10.82 mm5.63 mm1.21 ctF / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557139248
Side View
Table 60.0%Crown 36.13°Girdle: MED-THKPavilion 40.99°Culet: NoneDepth 62.5%

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 4
Current: $13,500 AUD|Low: $11,678 AUD|High: $18,325 AUD|Avg: $14,409 AUD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Steven Stone
November 7, 2026
Retailer 3$11,678 AUD
Retailer 13$12,393 AUD
Retailer 1$13,500 AUD
Retailer 4$13,695 AUD
Retailer 10$13,905 AUD
Retailer 8$14,302 AUD
Retailer 9$14,743 AUD
Retailer 11$14,743 AUD
Retailer 5$14,822 AUD
Retailer 2$14,948 AUD
Retailer 6$15,111 AUD
Retailer 12$15,238 AUD
Retailer 7$18,198 AUD
Steven Stone$18,247 AUD

45 data points across 14 retailers

15 retailers$11,678 AUD to $18,247 AUD

B+
Cheapest Retailer
-
$11,678 AUD
B+
Retailer 2
-
$12,393 AUD
View
B+
Retailer 3
-
$13,500 AUD
View
B
Retailer 4
-
$13,695 AUD
View
B
Retailer 5
-
$13,905 AUD
View
B
Retailer 6
-
$14,302 AUD
View
B
Retailer 7
-
$14,743 AUD
View
B
Retailer 8
-
$14,743 AUD
View
B
Retailer 9
-
$14,822 AUD
View
B
Retailer 10
-
$14,900 AUD
View
B
Retailer 11
-
$14,948 AUD
View
B
Retailer 12
-
$15,111 AUD
View
B
Retailer 13
-
$15,238 AUD
View
B
Retailer 14
-
$18,198 AUD
View
Most Expensive
B
Steven Stone
338028196 · Nov 7
$18,247 AUD
£9,872 GBP
View
14 more retailers have this diamond
Prices start from $11,678 AUDSave up to $6,569 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+
1.21ct Marquise
$11,678 AUD