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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

VG • H/SI2 • GIA 1226341518

Certificate GIA 1226341518

Diamond specifications and retailer prices

From $6,581 AUD
As of November 7, 2026
Save $8,059 AUD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,640 AUD at Belgium Diamonds · As of November 5, 2026
View at Belgium Diamonds

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1226341518. Listed at 12 retailers as of November 5, 2026, with prices from $6,581 to $14,640, a $8,059 spread on the same certified stone. Belgium Diamonds lists it at $14,640. 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

1.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.68°
Pavilion angle35.09°
OriginNatural
Grading LabGIA
CertificateGIA 1226341518
Dimensions7.15 × 5.80 × 4.13 mm
L/W Ratio1.23
Top View
7.15 mm5.80 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1226341518
Side View
Table 72.0%Crown 47.68°Girdle: ThickPavilion 35.09°Culet: NoneDepth 71.3%

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 7
Current: $8,096 AUD|Low: $6,244 AUD|High: $14,007 AUD|Avg: $8,557 AUD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 4, 2026
Retailer 8$6,244 AUD
Retailer 9$6,280 AUD
Retailer 3$6,581 AUD
Retailer 7$7,305 AUD
Retailer 12$7,350 AUD
Retailer 2$7,731 AUD
Retailer 11$8,089 AUD
Retailer 1$8,096 AUD
Retailer 6$8,374 AUD
Retailer 13$8,374 AUD
Retailer 17$8,374 AUD
Retailer 5$8,600 AUD
Retailer 14$9,083 AUD
Retailer 10$9,664 AUD
Retailer 4$9,984 AUD
Retailer 16$12,403 AUD
Retailer 15$14,007 AUD

28 data points across 17 retailers

12 retailers$6,581 AUD to $14,640 AUD

A
Cheapest Retailer
-
$6,581 AUD
Retailer 2
-
$7,305 AUD
View
Price last confirmed 18 days ago
Retailer 3
-
$7,350 AUD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$8,089 AUD
View
B+
Retailer 5
-
$8,096 AUD
View
Retailer 6
-
$8,374 AUD
View
Price last confirmed 22 days ago
Retailer 7
-
$8,374 AUD
View
Price last confirmed 18 days ago
B+
Retailer 8
-
$8,600 AUD
View
B
Retailer 9
-
$9,664 AUD
View
Retailer 10
-
$12,403 AUD
View
Price last confirmed 19 days ago
Retailer 11
-
$14,007 AUD
View
Price last confirmed 20 days ago
Most Expensive
B
Belgium Diamonds
427921467 · Nov 5
$14,640 AUD
€9,580 EUR
View
11 more retailers have this diamond
Prices start from $6,581 AUDSave up to $8,059 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
1.51ct Radiant
$6,581 AUD