Radiant|Natural|GIA

1.26ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 6555299354

Certificate GIA 6555299354

Diamond specifications and retailer prices

From $2,924 USD
As of November 6, 2026
Save $3,426 USD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,350 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.26ct natural radiant diamond

This 1.26ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555299354. Listed at 12 retailers as of November 4, 2026, with prices from $2,924 to $6,350, a $3,426 spread on the same certified stone. MOH London lists it at $6,350. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.74°
OriginNatural
Grading LabGIA
CertificateGIA 6555299354
Dimensions7.55 × 5.39 × 3.64 mm
L/W Ratio1.40
Key to symbols
Cloud, Twinning Wisp, Feather, Crystal, Needle
Top View
7.55 mm5.39 mm1.26 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555299354
Side View
Table 66.0%Crown 45.74°Girdle: MED-STKPavilionCulet: NoneDepth 67.5%

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 6
Current: $6,350 USD|Low: $2,924 USD|High: $7,004 USD|Avg: $4,084 USD|-9.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3$2,924 USD
Retailer 10$2,924 USD
Retailer 12$3,694 USD
Retailer 9$3,750 USD
Retailer 8$3,910 USD
Retailer 11$3,910 USD
Retailer 2$3,939 USD
Retailer 7$4,040 USD
Retailer 4$4,311 USD
Retailer 5$4,431 USD
Retailer 6$5,499 USD
MOH London$6,350 USD

45 data points across 12 retailers

12 retailers$2,924 USD to $6,350 USD

A
Cheapest Retailer
-
$2,924 USD
A
Retailer 2
-
$2,924 USD
View
B+
Retailer 3
-
$3,694 USD
View
B+
Retailer 4
-
$3,750 USD
View
B+
Retailer 5
-
$3,880 USD
View
B+
Retailer 6
-
$3,910 USD
View
B+
Retailer 7
-
$3,910 USD
View
B+
Retailer 8
-
$3,939 USD
View
B+
Retailer 9
-
$4,040 USD
View
B+
Retailer 10
-
$4,431 USD
View
B
Retailer 11
-
$5,499 USD
View
Most Expensive
B
MOH London
CEF3EF61C · Nov 4
$6,350 USD
£5,000 GBP
View
11 more retailers have this diamond
Prices start from $2,924 USDSave up to $3,426 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.

A
1.26ct Radiant
$2,924 USD