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Cushion|Natural|GIA

3.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 2504163221

Certificate GIA 2504163221

Diamond specifications and retailer prices

From $76,980 AUD
As of November 5, 2026
Save $49,394 AUD (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $126,374 AUD at MOH London · As of November 7, 2026
View at MOH London

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2504163221. Listed at 15 retailers as of November 5, 2026, with prices from $76,980 to $126,374, a $49,394 spread on the same certified stone. MOH London lists it at $126,374. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.51
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2504163221
Dimensions9.89 × 7.63 × 5.26 mm
L/W Ratio1.30
Top View
9.89 mm7.63 mm3.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2504163221
Side View
Table 71.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.9%

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 5
Current: $126,374 AUD|Low: $76,980 AUD|High: $128,585 AUD|Avg: $91,448 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 10$76,980 AUD
Retailer 3$78,136 AUD
Retailer 7$79,692 AUD
Retailer 4$81,711 AUD
Retailer 6$82,066 AUD
Retailer 12$86,333 AUD
Retailer 5$89,653 AUD
Retailer 11$91,313 AUD
Retailer 9$92,974 AUD
Retailer 8$96,327 AUD
Retailer 2$97,861 AUD
MOH London$126,374 AUD

40 data points across 12 retailers

15 retailers$76,980 AUD to $126,374 AUD

B+
Cheapest Retailer
-
$76,980 AUD
B
Retailer 2
-
$78,136 AUD
View
B
Retailer 3
-
$79,692 AUD
View
B
Retailer 4
-
$81,711 AUD
View
B+
Retailer 5
-
$82,066 AUD
View
B
Retailer 6
-
$85,170 AUD
View
B
Retailer 7
-
$85,170 AUD
View
B
Retailer 8
-
$86,333 AUD
View
B
Retailer 9
-
$88,008 AUD
View
B
Retailer 10
-
$89,653 AUD
View
B
Retailer 11
-
$91,313 AUD
View
B
Retailer 12
-
$92,974 AUD
View
B
Retailer 13
-
$96,327 AUD
View
B
Retailer 14
-
$97,861 AUD
View
Most Expensive
B
MOH London
06EF18B28 · Nov 7
$126,374 AUD
£68,371 GBP
View
14 more retailers have this diamond
Prices start from $76,980 AUDSave up to $49,394 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+
3.51ct Cushion
$76,980 AUD