Round|Natural|GIA

12.38ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2211944357

Certificate GIA 2211944357

Diamond specifications and retailer prices

From £391,301 GBP
$524,300 USD
As of November 1, 2026
Save £149,484 GBP (28%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £540,785 GBP at Yorxs · As of November 1, 2026
View at Yorxs

About this 12.38ct natural round diamond

This 12.38ct natural round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2211944357. Listed at 6 retailers as of November 1, 2026, with prices from £391,301 to £540,785, a £149,484 spread on the same certified stone. Yorxs lists it at £540,785. 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

12.38
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2211944357
Dimensions15.18 × 15.13 × 9.06 mm
L/W Ratio1.00
Top View
15.18 mm15.13 mm12.38 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2211944357
Side View
Table 57.0%CrownGirdle: MED-NULPavilionCulet: NoneDepth 59.8%

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 1
Current: £405,591 GBP|Low: £391,301 GBP|High: £544,608 GBP|Avg: £430,985 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 1, 2026
Retailer 2£391,301 GBP
Retailer 5£396,120 GBP
Retailer 3£399,554 GBP
Retailer 1£405,591 GBP
Retailer 4£451,411 GBP
Yorxs£540,785 GBP

42 data points across 6 retailers

6 retailers£391,301 GBP to £540,785 GBP

A
Cheapest Retailer
-
£391,301 GBP
$524,300 USD
B+
Retailer 2
-
£399,554 GBP
$535,358 USD
View
A
Retailer 3
-
£405,591 GBP
₹51,756,946 INR
View
A
Retailer 4
-
£405,840 GBP
$543,781 USD
View
B+
Retailer 5
-
£451,411 GBP
$604,841 USD
View
Final sale: no returns
Most Expensive
B+
Yorxs
36797 · Nov 1
£540,785 GBP
€690,088 EUR
View
5 more retailers have this diamond
Prices start from £391,301 GBPSave up to £149,484 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.

A
12.38ct Round
£391,301 GBP