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Round|Natural|GIA

3.12ct E SI2 Round Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From $49,696 AUD
As of November 2, 2026
Save $12,467 AUD (20%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $62,163 AUD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 12 retailers as of November 5, 2026, with prices from $49,696 to $62,163, a $12,467 spread on the same certified stone. The Diamond Guys lists it at $62,163. 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

3.12
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.23 × 9.29 × 5.81 mm
L/W Ratio1.01
Top View
9.23 mm9.29 mm3.12 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.7%

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: $49,696 AUD|Low: $49,696 AUD|High: $62,163 AUD|Avg: $55,368 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
November 5, 2026
Retailer 1$49,696 AUD
Retailer 6$50,459 AUD
Retailer 2$53,232 AUD
Retailer 3$53,657 AUD
Retailer 7$55,362 AUD
Retailer 5$55,733 AUD
Retailer 8$57,457 AUD
Retailer 4$57,490 AUD
The Diamond Guys$62,163 AUD

13 data points across 9 retailers

12 retailers$49,696 AUD to $62,163 AUD

A
Cheapest Retailer
-
$49,696 AUD
A
Retailer 2
-
$49,696 AUD
View
A
Retailer 3
-
$50,459 AUD
View
A
Retailer 4
-
$50,459 AUD
View
A
Retailer 5
-
$53,232 AUD
View
A
Retailer 6
-
$53,657 AUD
View
A
Retailer 7
-
$55,362 AUD
View
A
Retailer 8
-
$55,733 AUD
View
A
Retailer 9
-
$55,733 AUD
View
B+
Retailer 10
-
$57,490 AUD
View
B+
Retailer 11
-
$62,163 AUD
View
Most Expensive
B+
The Diamond Guys
1999212293 · Nov 6
$62,163 AUD
$43,516 USD
View
11 more retailers have this diamond
Prices start from $49,696 AUDSave up to $12,467 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
3.12ct Round
$49,696 AUD