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Round|Natural|GIA

5.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1565178921

Certificate GIA 1565178921

Diamond specifications and retailer prices

From $121,233 AUD
£67,055 GBP
As of November 2, 2026
Save $69,144 AUD (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $190,378 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 5.05ct natural round diamond

This 5.05ct natural round sits in the over five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565178921. Listed at 10 retailers as of November 1, 2026, with prices from $121,233 to $190,378, a $69,144 spread on the same certified stone. MOH London lists it at $190,378. 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

5.05
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565178921
Dimensions10.93 × 11.02 × 6.79 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.93 mm11.02 mm5.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565178921
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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 2
Current: $190,378 AUD|Low: $120,226 AUD|High: $192,672 AUD|Avg: $140,624 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3$121,233 AUD
Retailer 10$123,339 AUD
Retailer 5$126,978 AUD
Retailer 2$128,639 AUD
Retailer 9$134,553 AUD
Retailer 4$137,143 AUD
Retailer 8$140,161 AUD
Retailer 7$145,767 AUD
Retailer 6$151,373 AUD
MOH London$190,378 AUD

18 data points across 10 retailers

10 retailers$121,233 AUD to $190,378 AUD

A
Cheapest Retailer
-
$121,233 AUD
£67,055 GBP
A
Retailer 2
-
$123,339 AUD
$86,639 USD
View
Final sale: no returns
A
Retailer 3
-
$126,978 AUD
$89,195 USD
View
A
Retailer 4
-
$128,639 AUD
£71,151 GBP
View
Retailer 5
-
$134,553 AUD
$94,516 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$137,143 AUD
€91,748 EUR
View
B+
Retailer 7
-
$140,161 AUD
$98,455 USD
View
B+
Retailer 8
-
$145,767 AUD
$102,393 USD
View
B+
Retailer 9
-
$151,373 AUD
$106,331 USD
View
Most Expensive
B+
MOH London
8CF8E73CA · Nov 1
$190,378 AUD
£105,299 GBP
View
9 more retailers have this diamond
Prices start from $121,233 AUDSave up to $69,144 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
5.05ct Round
$121,233 AUD