Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 7548672221

Certificate GIA 7548672221

Diamond specifications and retailer prices

From $5,710 AUD
$4,002 USD
As of November 2, 2026
Save $6,645 AUD (54%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $12,356 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I 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 7548672221. Listed at 30 retailers as of October 30, 2026, with prices from $5,710 to $12,356, a $6,645 spread on the same certified stone. NZ Jewellers lists it at $12,356. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548672221
Dimensions7.59 × 6.03 × 4.11 mm
L/W Ratio1.26
Culet sizeNone
Top View
7.59 mm6.03 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7548672221
Side View
Table 70.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $12,356 AUD|Low: $5,168 AUD|High: $12,356 AUD|Avg: $7,075 AUD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 11
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Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
Retailer 30
November 2, 2026
Retailer 23$5,385 AUD
Retailer 3$5,615 AUD
Retailer 28$5,710 AUD
Retailer 4$5,772 AUD
Retailer 13$5,834 AUD
Retailer 15$5,836 AUD
Retailer 6$5,906 AUD
Retailer 17$6,176 AUD
Retailer 22$6,201 AUD
Retailer 16$6,536 AUD
Retailer 18$6,585 AUD
Retailer 14$6,642 AUD
Retailer 5$6,692 AUD
Retailer 8$6,692 AUD
Retailer 27$6,692 AUD
Retailer 20$6,768 AUD
Retailer 10$6,805 AUD
Retailer 7$7,062 AUD
Retailer 19$7,101 AUD
Retailer 2$7,205 AUD
Retailer 21$7,346 AUD
Retailer 25$7,374 AUD
Retailer 11$7,505 AUD
Retailer 29$7,505 AUD
Retailer 12$7,722 AUD
Retailer 30$7,762 AUD
Retailer 24$7,884 AUD
Retailer 9$10,694 AUD
Retailer 26$11,766 AUD
NZ Jewellers$12,356 AUD

25 data points across 30 retailers

30 retailers$5,710 AUD to $12,356 AUD

Retailer 1
-
$5,615 AUD
$3,935 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$5,710 AUD
$4,002 USD
View
A
Retailer 3
-
$5,772 AUD
$4,045 USD
View
A
Retailer 4
-
$5,834 AUD
$4,088 USD
View
A
Retailer 5
-
$5,836 AUD
$4,090 USD
View
A
Retailer 6
-
$5,906 AUD
$4,139 USD
View
Retailer 7
-
$6,064 AUD
$4,250 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$6,176 AUD
$4,328 USD
View
Final sale: no returns
A
Retailer 9
-
$6,536 AUD
CA$6,362 CAD
View
A
Retailer 10
-
$6,585 AUD
$4,615 USD
View
A
Retailer 11
-
$6,642 AUD
$4,655 USD
View
A
Retailer 12
-
$6,692 AUD
$4,690 USD
View
A
Retailer 13
-
$6,692 AUD
$4,690 USD
View
A
Retailer 14
-
$6,692 AUD
$4,690 USD
View
Retailer 15
-
$6,768 AUD
$4,743 USD
View
Price last confirmed 18 days ago
B+
Retailer 16
-
$6,805 AUD
$4,769 USD
View
B+
Retailer 17
-
$7,062 AUD
$4,949 USD
View
B+
Retailer 18
-
$7,101 AUD
$4,976 USD
View
A
Retailer 19
-
$7,205 AUD
£3,976 GBP
View
B+
Retailer 20
-
$7,346 AUD
$5,148 USD
View
B+
Retailer 21
-
$7,374 AUD
£4,069 GBP
View
B+
Retailer 22
-
$7,505 AUD
$5,260 USD
View
B+
Retailer 23
-
$7,505 AUD
$5,260 USD
View
B+
Retailer 24
-
$7,722 AUD
$5,412 USD
View
B+
Retailer 25
-
$7,762 AUD
$5,440 USD
View
B+
Retailer 26
-
$7,884 AUD
€5,262 EUR
View
Retailer 27
-
$8,503 AUD
$5,959 USD
View
Price last confirmed 34 days ago
Retailer 28
-
$10,694 AUD
$7,494 USD
View
Price last confirmed 7 days ago
B
Retailer 29
-
$11,766 AUD
£6,493 GBP
View
Most Expensive
B
NZ Jewellers
984a2a92-96c8-4498-bd5e-7d3199eafad8 · Oct 30
$12,356 AUD
$8,659 USD
View
29 more retailers have this diamond
Prices start from $5,710 AUDSave up to $6,645 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
$5,710 AUD