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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 5241011851

Certificate GIA 5241011851

Diamond specifications and retailer prices

From $9,919 AUD
$6,952 USD
As of October 26, 2026
6 retailers carry this diamond
Most expensive: $16,873 AUD at MOH London · As of October 26, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241011851. Listed at 6 retailers as of October 26, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241011851
Dimensions7.35 × 5.64 × 3.93 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
7.35 mm5.64 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241011851
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 26
Current: $16,873 AUD|Low: $8,152 AUD|High: $16,873 AUD|Avg: $10,763 AUD
MOH London
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 26, 2026
Retailer 10$8,152 AUD
Retailer 9$8,329 AUD
Retailer 7$8,703 AUD
Retailer 6$8,835 AUD
Retailer 11$9,096 AUD
Retailer 8$9,189 AUD
Retailer 5$9,510 AUD
Retailer 15$9,919 AUD
Retailer 21$10,083 AUD
Retailer 3$10,486 AUD
Retailer 12$11,044 AUD
Retailer 20$11,294 AUD
Retailer 2$11,421 AUD
Retailer 4$11,696 AUD
Retailer 17$12,186 AUD
Retailer 18$12,186 AUD
Retailer 16$12,334 AUD
Retailer 19$12,585 AUD
Retailer 13$12,594 AUD
Retailer 14$13,559 AUD
MOH London$16,873 AUD

4 data points across 21 retailers

6 retailers$9,919 AUD to $16,873 AUD

Retailer 1
-
$9,919 AUD
$6,952 USD
Price last confirmed 7 days ago
Retailer 2
-
$11,421 AUD
£6,302 GBP
View
Price last confirmed 7 days ago
Retailer 3
-
$12,186 AUD
$8,540 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$12,334 AUD
$8,644 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$12,585 AUD
$8,820 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
778FEAE61 · Oct 26
$16,873 AUD
£9,311 GBP
View
Price last confirmed 7 days ago
5 more retailers have this diamond

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.

1.51ct Radiant
$9,919 AUD