CaratHunter
Plans
Round|Natural|GIA

12.39ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2225192990

Certificate GIA 2225192990

Diamond specifications and retailer prices

From $437,210 CAD
HK$2,445,200 HKD
As of October 30, 2026
Save $220,133 CAD (33%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $657,342 CAD at Yorxs · As of October 31, 2026
View at Yorxs

About this 12.39ct natural round diamond

This 12.39ct 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 2225192990. Listed at 4 retailers as of October 30, 2026, with prices from $437,210 to $657,342, a $220,133 spread on the same certified stone. Yorxs lists it at $657,342. 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

12.39
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2225192990
Dimensions15.08 × 15.02 × 9.00 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Key to symbols
Crystal, Needle, Feather, Etch Channel
Top View
15.08 mm15.02 mm12.39 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2225192990
Side View
Table 60.0%Crown 34.5°Girdle: NUL-THNPavilion 41.2°Culet: NoneDepth 59.9%

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: Oct 30
Current: $573,405 CAD|Low: $437,210 CAD|High: $693,414 CAD|Avg: $534,989 CAD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
October 31, 2026
Retailer 3$437,210 CAD
Retailer 2$491,424 CAD
Retailer 4$506,247 CAD
Retailer 1$573,405 CAD
Yorxs$657,342 CAD

17 data points across 5 retailers

4 retailers$437,210 CAD to $657,342 CAD

A
Cheapest Retailer
-
$437,210 CAD
HK$2,445,200 HKD
Retailer 2
-
$491,424 CAD
SGD 475,400 SGD
View
Price last confirmed 21 days ago
B+
Retailer 3
-
$573,405 CAD
£323,216 GBP
View
Most Expensive
B+
Yorxs
S-1333 · Oct 31
$657,342 CAD
€448,164 EUR
View
3 more retailers have this diamond
Prices start from $437,210 CADSave up to $220,133 CAD

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
12.39ct Round
$437,210 CAD