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Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1226247495

Certificate GIA 1226247495

Diamond specifications and retailer prices

From $10,342 AUD
$7,248 USD
As of November 2, 2026
Save $12,995 AUD (56%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $23,337 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1226247495. Listed at 30 retailers as of October 30, 2026, with prices from $10,342 to $23,337, a $12,995 spread on the same certified stone. NZ Jewellers lists it at $23,337. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1226247495
Dimensions7.16 × 5.60 × 3.90 mm
L/W Ratio1.28
Culet sizeNone
Top View
7.16 mm5.60 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1226247495
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.7%

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 2
Current: $15,242 AUD|Low: $10,342 AUD|High: $19,680 AUD|Avg: $13,681 AUD|+2.1%
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
November 2, 2026
Retailer 14$10,342 AUD
Retailer 11$10,737 AUD
Retailer 12$11,194 AUD
Retailer 4$11,668 AUD
Retailer 2$11,765 AUD
Retailer 13$12,835 AUD
Retailer 10$12,892 AUD
Retailer 7$13,031 AUD
Retailer 6$14,143 AUD
Retailer 5$14,931 AUD
Retailer 1$15,242 AUD
Retailer 3$15,359 AUD
Retailer 9$17,142 AUD
Retailer 8$19,445 AUD

45 data points across 14 retailers

30 retailers$10,342 AUD to $23,337 AUD

A
Cheapest Retailer
-
$10,342 AUD
$7,248 USD
Retailer 2
-
$10,737 AUD
$7,525 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$10,857 AUD
$7,609 USD
View
B+
Retailer 4
-
$10,900 AUD
View
B+
Retailer 5
-
$10,926 AUD
$7,657 USD
View
B+
Retailer 6
-
$11,194 AUD
$7,845 USD
View
Final sale: no returns
B+
Retailer 7
-
$11,238 AUD
$7,876 USD
View
B+
Retailer 8
-
$11,468 AUD
CA$11,162 CAD
View
B+
Retailer 9
-
$11,608 AUD
$8,135 USD
View
B+
Retailer 10
-
$11,668 AUD
$8,177 USD
View
B+
Retailer 11
-
$11,765 AUD
$8,245 USD
View
B+
Retailer 12
-
$12,436 AUD
$8,715 USD
View
B+
Retailer 13
-
$12,641 AUD
$8,859 USD
View
B+
Retailer 14
-
$12,835 AUD
$8,995 USD
View
Retailer 15
-
$12,892 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$12,949 AUD
$9,075 USD
View
B+
Retailer 17
-
$13,031 AUD
£7,191 GBP
View
B
Retailer 18
-
$13,413 AUD
$9,400 USD
View
B
Retailer 19
-
$13,827 AUD
$9,690 USD
View
B
Retailer 20
-
$13,827 AUD
$9,690 USD
View
B+
Retailer 21
-
$14,143 AUD
$9,912 USD
View
B+
Retailer 22
-
$14,283 AUD
$10,010 USD
View
B
Retailer 23
-
$14,586 AUD
$10,222 USD
View
B
Retailer 24
-
$14,893 AUD
$10,437 USD
View
B
Retailer 25
-
$14,931 AUD
View
B
Retailer 26
-
$15,242 AUD
€10,173 EUR
View
Retailer 27
-
$15,359 AUD
$10,764 USD
View
Price last confirmed 10 days ago
B
Retailer 28
-
$17,142 AUD
ZAR 194,074 ZAR
View
B
Retailer 29
-
$19,445 AUD
£10,730 GBP
View
Most Expensive
B
NZ Jewellers
dc34e41b-1b78-429d-a20b-acb2e110d87c · Oct 30
$23,337 AUD
$16,355 USD
View
29 more retailers have this diamond
Prices start from $10,342 AUDSave up to $12,995 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
$10,342 AUD