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Radiant|Natural|GIA

1.30ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 2378005480

Certificate GIA 2378005480

Diamond specifications and retailer prices

From $6,829 AUD
As of November 6, 2026
Save $6,330 AUD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $13,158 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half 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 2378005480. Listed at 10 retailers as of November 4, 2026, with prices from $6,829 to $13,158, a $6,330 spread on the same certified stone. MOH London lists it at $13,158. 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

1.30
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2378005480
Dimensions6.38 × 5.98 × 4.08 mm
L/W Ratio1.07
Top View
6.38 mm5.98 mm1.30 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2378005480
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $13,158 AUD|Low: $6,829 AUD|High: $13,353 AUD|Avg: $8,910 AUD|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$6,829 AUD
Retailer 10$7,225 AUD
Retailer 6$7,226 AUD
Retailer 8$7,428 AUD
Retailer 9$8,284 AUD
Retailer 7$8,328 AUD
Retailer 2$8,815 AUD
Retailer 4$9,322 AUD
Retailer 5$10,106 AUD
MOH London$13,158 AUD

46 data points across 10 retailers

10 retailers$6,829 AUD to $13,158 AUD

B
Cheapest Retailer
-
$6,829 AUD
B
Retailer 2
-
$7,225 AUD
View
B
Retailer 3
-
$7,226 AUD
View
B
Retailer 4
-
$7,428 AUD
View
Retailer 5
-
$8,284 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$8,328 AUD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$8,815 AUD
View
B
Retailer 8
-
$9,322 AUD
View
B
Retailer 9
-
$10,106 AUD
View
Most Expensive
B
MOH London
418BC906B · Nov 4
$13,158 AUD
£7,119 GBP
View
9 more retailers have this diamond
Prices start from $6,829 AUDSave up to $6,330 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
1.30ct Radiant
$6,829 AUD