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Round|Natural|GIA

3.12ct E SI2 Round Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From $61,886 NZD
As of November 2, 2026
Save $15,524 NZD (20%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $77,411 NZD 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 $61,886 to $77,411, a $15,524 spread on the same certified stone. The Diamond Guys lists it at $77,411. 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: $61,886 NZD|Low: $61,886 NZD|High: $77,411 NZD|Avg: $68,949 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
The Diamond Guys
November 5, 2026
Retailer 1$61,886 NZD
Retailer 6$62,836 NZD
Retailer 2$66,289 NZD
Retailer 3$66,819 NZD
Retailer 7$68,941 NZD
Retailer 5$69,404 NZD
Retailer 8$71,551 NZD
Retailer 4$71,592 NZD
The Diamond Guys$77,411 NZD

13 data points across 9 retailers

12 retailers$61,886 NZD to $77,411 NZD

A
Cheapest Retailer
-
$61,886 NZD
A
Retailer 2
-
$61,886 NZD
View
A
Retailer 3
-
$62,836 NZD
View
A
Retailer 4
-
$62,836 NZD
View
A
Retailer 5
-
$66,289 NZD
View
A
Retailer 6
-
$66,819 NZD
View
A
Retailer 7
-
$68,941 NZD
View
A
Retailer 8
-
$69,404 NZD
View
A
Retailer 9
-
$69,404 NZD
View
B+
Retailer 10
-
$71,592 NZD
View
B+
Retailer 11
-
$77,411 NZD
View
Most Expensive
B+
The Diamond Guys
1999212293 · Nov 6
$77,411 NZD
$43,516 USD
View
11 more retailers have this diamond
Prices start from $61,886 NZDSave up to $15,524 NZD

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
$61,886 NZD