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Round|Natural|GIA

3.12ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6194822748

Certificate GIA 6194822748

Diamond specifications and retailer prices

From £30,007 GBP
$40,206 USD
As of October 31, 2026
Save £24,293 GBP (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £54,300 GBP at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6194822748. Listed at 12 retailers as of October 31, 2026, with prices from £30,007 to £54,300, a £24,293 spread on the same certified stone. MOH London lists it at £54,300. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6194822748
Dimensions9.37 × 9.39 × 5.81 mm
L/W Ratio1.00
Culet sizeNone
Top View
9.37 mm9.39 mm3.12 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6194822748
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.9%

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: Oct 31
Current: £54,300 GBP|Low: £31,381 GBP|High: £54,954 GBP|Avg: £39,136 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4£31,455 GBP
Retailer 5£33,292 GBP
Retailer 2£34,494 GBP
Retailer 3£40,707 GBP
MOH London£54,300 GBP

40 data points across 5 retailers

12 retailers£30,007 GBP to £54,300 GBP

B+
Cheapest Retailer
-
£30,007 GBP
$40,206 USD
B+
Retailer 2
-
£31,455 GBP
₹4,013,920 INR
View
B+
Retailer 3
-
£31,752 GBP
$42,544 USD
View
B+
Retailer 4
-
£31,845 GBP
$42,669 USD
View
B+
Retailer 5
-
£32,553 GBP
CA$60,579 CAD
View
Retailer 6
-
£33,292 GBP
A$68,628 AUD
View
Price last confirmed 28 days ago
B+
Retailer 7
-
£34,494 GBP
View
B
Retailer 8
-
£34,747 GBP
$46,557 USD
View
B
Retailer 9
-
£40,354 GBP
$54,070 USD
View
B
Retailer 10
-
£40,707 GBP
€51,946 EUR
View
B
Retailer 11
-
£40,719 GBP
$54,559 USD
View
Most Expensive
B
MOH London
A415DE846 · Nov 1
£54,300 GBP
View
11 more retailers have this diamond
Prices start from £30,007 GBPSave up to £24,293 GBP

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
£30,007 GBP