Round|Natural|GIA

1.26ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2504158362

Shape and cutting style on the report: Round

Certificate GIA 2504158362

Diamond specifications and retailer prices

From $3,368 USD
£2,652 GBP
As of October 30, 2026
7 retailers carry this diamond
Most expensive: $3,368 USD at 77 Diamonds
View at 77 Diamonds

About this 1.26ct natural round diamond

This 1.26ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2504158362. Listed at 7 retailers as of October 30, 2026. 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

1.26
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2504158362
Dimensions6.98 × 6.93 × 4.33 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
6.98 mm6.93 mm1.26 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2504158362
Side View
Table 57.0%Crown 35°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 62.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $3,368 USD|Low: $2,019 USD|High: $5,857 USD|Avg: $3,173 USD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$2,122 USD
Retailer 9$2,457 USD
Retailer 10$2,509 USD
Retailer 3$2,586 USD
Retailer 8$2,646 USD
Retailer 5$2,802 USD
Retailer 4$3,274 USD
77 Diamonds$3,368 USD
Retailer 6$4,967 USD
Retailer 7$5,857 USD

43 data points across 10 retailers

7 retailers

Retailer 1
-
$2,457 USD
Price last confirmed 17 days ago
Retailer 2
-
$2,560 USD
View
Price last confirmed 23 days ago
Retailer 3
-
$2,802 USD
View
Price last confirmed 38 days ago
Retailer 4
-
$2,802 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$2,943 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$3,233 USD
View
Price last confirmed 38 days ago
Most Expensive
B+
77 Diamonds
RBCPSS2ZBMQW · Oct 30
$3,368 USD
£2,652 GBP
View
6 more retailers have this diamond

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+
1.26ct Round
$3,368 USD