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Round|Natural|GIA

1.21ct F FL Round Natural Diamond

EX • F/FL • GIA 6555155245

Certificate GIA 6555155245

Diamond specifications and retailer prices

From $10,708 AUD
As of November 1, 2026
Save $8,185 AUD (43%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,893 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6555155245. Listed at 19 retailers as of November 1, 2026, with prices from $10,708 to $18,893, a $8,185 spread on the same certified stone. MOH London lists it at $18,893. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555155245
Dimensions6.76 × 6.81 × 4.26 mm
L/W Ratio1.01
Top View
6.76 mm6.81 mm1.21 ctF / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555155245
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,893 AUD|Low: $10,708 AUD|High: $18,945 AUD|Avg: $13,737 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 4$10,708 AUD
Retailer 3$10,774 AUD
Retailer 13$10,919 AUD
Retailer 14$11,278 AUD
Retailer 19$11,401 AUD
Retailer 6$11,558 AUD
Retailer 15$13,034 AUD
Retailer 7$13,345 AUD
Retailer 17$13,366 AUD
Retailer 8$13,466 AUD
Retailer 16$13,755 AUD
Retailer 10$13,776 AUD
Retailer 12$14,944 AUD
Retailer 18$15,274 AUD
Retailer 11$16,019 AUD
Retailer 9$16,816 AUD
Retailer 2$17,696 AUD
Retailer 5$18,568 AUD
MOH London$18,893 AUD

24 data points across 19 retailers

19 retailers$10,708 AUD to $18,893 AUD

A
Cheapest Retailer
-
$10,708 AUD
A
Retailer 2
-
$10,774 AUD
View
A
Retailer 3
-
$10,919 AUD
View
A
Retailer 4
-
$11,278 AUD
View
A
Retailer 5
-
$11,401 AUD
View
A
Retailer 6
-
$11,558 AUD
View
B+
Retailer 7
-
$13,034 AUD
View
B+
Retailer 8
-
$13,345 AUD
View
B+
Retailer 9
-
$13,366 AUD
View
B+
Retailer 10
-
$13,466 AUD
View
B+
Retailer 11
-
$13,755 AUD
View
Retailer 12
-
$13,776 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$14,944 AUD
View
B+
Retailer 14
-
$15,066 AUD
View
B+
Retailer 15
-
$15,274 AUD
View
B+
Retailer 16
-
$16,816 AUD
View
B
Retailer 17
-
$17,696 AUD
View
B
Retailer 18
-
$18,568 AUD
View
Most Expensive
B
MOH London
87F3DDF8A · Nov 4
$18,893 AUD
£10,414 GBP
View
18 more retailers have this diamond
Prices start from $10,708 AUDSave up to $8,185 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.

A
1.21ct Round
$10,708 AUD