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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 2145970060

Certificate GIA 2145970060

Diamond specifications and retailer prices

From $12,007 AUD
$8,415 USD
As of November 2, 2026
Save $10,747 AUD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $22,755 AUD at NZ Jewellers · As of November 3, 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 F 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 2145970060. Listed at 24 retailers as of November 2, 2026, with prices from $12,007 to $22,755, a $10,747 spread on the same certified stone. NZ Jewellers lists it at $22,755. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2145970060
Dimensions6.76 × 5.97 × 4.16 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Feather, Cloud, Pinpoint
Top View
6.76 mm5.97 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2145970060
Side View
Table 68.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.7%

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 2
Current: $14,947 AUD|Low: $11,378 AUD|High: $21,579 AUD|Avg: $15,407 AUD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 2$12,007 AUD
Retailer 7$12,157 AUD
Retailer 9$13,653 AUD
Retailer 10$13,653 AUD
Retailer 1$14,947 AUD
Retailer 8$15,018 AUD
Retailer 6$15,022 AUD
Retailer 3$16,397 AUD
Retailer 5$20,058 AUD
Retailer 4$21,324 AUD

44 data points across 10 retailers

24 retailers$12,007 AUD to $22,755 AUD

B+
Cheapest Retailer
-
$12,007 AUD
$8,415 USD
B+
Retailer 2
-
$12,157 AUD
$8,520 USD
View
B
Retailer 3
-
$12,632 AUD
$8,853 USD
View
B
Retailer 4
-
$12,668 AUD
$8,878 USD
View
B
Retailer 5
-
$12,999 AUD
$9,110 USD
View
B
Retailer 6
-
$13,135 AUD
CA$12,785 CAD
View
B
Retailer 7
-
$13,520 AUD
$9,475 USD
View
B
Retailer 8
-
$13,653 AUD
$9,568 USD
View
B
Retailer 9
-
$13,653 AUD
$9,568 USD
View
Final sale: no returns
B
Retailer 10
-
$14,791 AUD
$10,366 USD
View
B
Retailer 11
-
$14,947 AUD
£8,248 GBP
View
B
Retailer 12
-
$15,018 AUD
$10,525 USD
View
Retailer 13
-
$15,022 AUD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$15,117 AUD
$10,594 USD
View
B
Retailer 15
-
$15,746 AUD
$11,035 USD
View
B
Retailer 16
-
$16,038 AUD
$11,240 USD
View
B
Retailer 17
-
$16,038 AUD
$11,240 USD
View
B
Retailer 18
-
$16,397 AUD
€10,944 EUR
View
B
Retailer 19
-
$16,581 AUD
$11,620 USD
View
B
Retailer 20
-
$17,066 AUD
$11,960 USD
View
Retailer 21
-
$17,968 AUD
$12,592 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
$20,058 AUD
ZAR 227,091 ZAR
View
B
Retailer 23
-
$21,324 AUD
£11,767 GBP
View
Most Expensive
C
NZ Jewellers
79c41613-54db-44fc-bf3a-66655627b226 · Nov 3
$22,755 AUD
$15,947 USD
View
23 more retailers have this diamond
Prices start from $12,007 AUDSave up to $10,747 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+
1.51ct Radiant
$12,007 AUD