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Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 1112367429

Certificate GIA 1112367429

Diamond specifications and retailer prices

From $3,145 AUD
As of November 5, 2026
Save $3,570 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,715 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1112367429. Listed at 17 retailers as of November 4, 2026, with prices from $3,145 to $6,715, a $3,570 spread on the same certified stone. MOH London lists it at $6,715. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1112367429
Dimensions5.88 × 5.63 × 3.90 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.88 mm5.63 mm1.20 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1112367429
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,715 AUD|Low: $3,214 AUD|High: $6,815 AUD|Avg: $4,479 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8$3,214 AUD
Retailer 3$3,678 AUD
Retailer 4$3,692 AUD
Retailer 2$4,066 AUD
Retailer 6$4,222 AUD
Retailer 9$4,305 AUD
Retailer 7$4,691 AUD
Retailer 5$4,726 AUD
MOH London$6,715 AUD

36 data points across 9 retailers

17 retailers$3,145 AUD to $6,715 AUD

B+
Cheapest Retailer
-
$3,145 AUD
B+
Retailer 2
-
$3,214 AUD
View
Final sale: no returns
B+
Retailer 3
-
$3,471 AUD
View
B+
Retailer 4
-
$3,550 AUD
View
B+
Retailer 5
-
$3,580 AUD
View
B+
Retailer 6
-
$3,678 AUD
View
B+
Retailer 7
-
$3,692 AUD
View
B+
Retailer 8
-
$3,768 AUD
View
B
Retailer 9
-
$4,002 AUD
View
B
Retailer 10
-
$4,002 AUD
View
B+
Retailer 11
-
$4,066 AUD
View
B
Retailer 12
-
$4,133 AUD
View
B
Retailer 13
-
$4,222 AUD
View
Retailer 14
-
$4,305 AUD
View
Price last confirmed 31 days ago
B
Retailer 15
-
$4,691 AUD
View
B
Retailer 16
-
$4,726 AUD
View
Most Expensive
B
MOH London
AA1098E12 · Nov 4
$6,715 AUD
£3,633 GBP
View
16 more retailers have this diamond
Prices start from $3,145 AUDSave up to $3,570 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.

B+
1.20ct Radiant
$3,145 AUD