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Round|Natural|GIA

3.12ct E SI2 Round Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From HK$272,927 HKD
As of November 2, 2026
Save HK$68,465 HKD (20%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$341,392 HKD 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 HK$272,927 to HK$341,392, a HK$68,465 spread on the same certified stone. The Diamond Guys lists it at HK$341,392. 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: HK$272,927 HKD|Low: HK$272,927 HKD|High: HK$341,392 HKD|Avg: HK$304,075 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
November 5, 2026
Retailer 1HK$272,927 HKD
Retailer 6HK$277,116 HKD
Retailer 2HK$292,344 HKD
Retailer 3HK$294,681 HKD
Retailer 7HK$304,041 HKD
Retailer 5HK$306,080 HKD
Retailer 8HK$315,550 HKD
Retailer 4HK$315,730 HKD
The Diamond GuysHK$341,392 HKD

13 data points across 9 retailers

12 retailersHK$272,927 HKD to HK$341,392 HKD

A
Cheapest Retailer
-
HK$272,927 HKD
A
Retailer 2
-
HK$272,927 HKD
View
A
Retailer 3
-
HK$277,116 HKD
View
A
Retailer 4
-
HK$277,116 HKD
View
A
Retailer 5
-
HK$292,344 HKD
View
A
Retailer 6
-
HK$294,681 HKD
View
A
Retailer 7
-
HK$304,041 HKD
View
A
Retailer 8
-
HK$306,080 HKD
View
A
Retailer 9
-
HK$306,080 HKD
View
B+
Retailer 10
-
HK$315,730 HKD
View
B+
Retailer 11
-
HK$341,392 HKD
View
Most Expensive
B+
The Diamond Guys
1999212293 · Nov 6
HK$341,392 HKD
$43,516 USD
View
11 more retailers have this diamond
Prices start from HK$272,927 HKDSave up to HK$68,465 HKD

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
HK$272,927 HKD