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Radiant|Natural|GIA

1.26ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 6555299354

Certificate GIA 6555299354

Diamond specifications and retailer prices

From $4,256 AUD
As of November 6, 2026
Save $4,986 AUD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,242 AUD 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 $4,256 to $9,242, a $4,986 spread on the same certified stone. MOH London lists it at $9,242. 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
Colour
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: $9,242 AUD|Low: $4,256 AUD|High: $10,194 AUD|Avg: $5,944 AUD|-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$4,256 AUD
Retailer 10$4,256 AUD
Retailer 12$5,376 AUD
Retailer 9$5,458 AUD
Retailer 8$5,691 AUD
Retailer 11$5,691 AUD
Retailer 2$5,733 AUD
Retailer 7$5,880 AUD
Retailer 4$6,274 AUD
Retailer 5$6,449 AUD
Retailer 6$8,003 AUD
MOH London$9,242 AUD

45 data points across 12 retailers

12 retailers$4,256 AUD to $9,242 AUD

A
Cheapest Retailer
-
$4,256 AUD
A
Retailer 2
-
$4,256 AUD
View
B+
Retailer 3
-
$5,376 AUD
View
B+
Retailer 4
-
$5,458 AUD
View
B+
Retailer 5
-
$5,647 AUD
View
B+
Retailer 6
-
$5,691 AUD
View
B+
Retailer 7
-
$5,691 AUD
View
B+
Retailer 8
-
$5,733 AUD
View
B+
Retailer 9
-
$5,880 AUD
View
B+
Retailer 10
-
$6,449 AUD
View
B
Retailer 11
-
$8,003 AUD
View
Most Expensive
B
MOH London
CEF3EF61C · Nov 4
$9,242 AUD
£5,000 GBP
View
11 more retailers have this diamond
Prices start from $4,256 AUDSave up to $4,986 AUD

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
$4,256 AUD