Round|Natural|GIA

3.12ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6542015252

Certificate GIA 6542015252

Diamond specifications and retailer prices

From $30,405 USD
As of November 2, 2026
Save $16,525 USD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $46,930 USD at MOH London · As of November 2, 2026
View at MOH London

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542015252. Listed at 7 retailers as of November 2, 2026, with prices from $30,405 to $46,930, a $16,525 spread on the same certified stone. MOH London lists it at $46,930. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6542015252
Dimensions9.23 × 9.30 × 5.88 mm
L/W Ratio1.01
Star length50%
Top View
9.23 mm9.30 mm3.12 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542015252
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $46,930 USD|Low: $26,427 USD|High: $47,497 USD|Avg: $34,347 USD|+1.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$30,405 USD
Retailer 5$30,761 USD
Retailer 7$31,302 USD
Retailer 6$31,975 USD
Retailer 3$35,457 USD
Retailer 2$36,480 USD
MOH London$46,930 USD

38 data points across 7 retailers

7 retailers$30,405 USD to $46,930 USD

B+
Cheapest Retailer
-
$30,405 USD
Final sale: no returns
B+
Retailer 2
-
$30,761 USD
View
B+
Retailer 3
-
$31,302 USD
View
B+
Retailer 4
-
$31,975 USD
View
B+
Retailer 5
-
$35,457 USD
€33,769 EUR
View
B+
Retailer 6
-
$36,480 USD
£28,724 GBP
View
Most Expensive
B
MOH London
5D1C97E66 · Nov 2
$46,930 USD
£36,953 GBP
View
6 more retailers have this diamond
Prices start from $30,405 USDSave up to $16,525 USD

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+
3.12ct Round
$30,405 USD