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Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1357781607

Certificate GIA 1357781607

Diamond specifications and retailer prices

From $13,002 AUD
$9,133 USD
As of November 1, 2026
Save $4,025 AUD (24%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $17,026 AUD at Jared · As of November 2, 2026
View at Jared

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 1357781607. Listed at 7 retailers as of November 1, 2026, with prices from $13,002 to $17,026, a $4,025 spread on the same certified stone. Jared lists it at $17,026. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1357781607
Dimensions7.03 × 5.71 × 4.08 mm
L/W Ratio1.23
Culet sizeNone
Top View
7.03 mm5.71 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1357781607
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.5%

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 1
Current: $16,467 AUD|Low: $12,297 AUD|High: $25,110 AUD|Avg: $17,858 AUD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2$13,527 AUD
Retailer 1$16,467 AUD
Retailer 4$16,706 AUD
Retailer 3$25,110 AUD

36 data points across 4 retailers

7 retailers$13,002 AUD to $17,026 AUD

B+
Cheapest Retailer
-
$13,002 AUD
$9,133 USD
B+
Retailer 2
-
$13,173 AUD
View
B
Retailer 3
-
$13,527 AUD
$9,502 USD
View
Final sale: no returns
B
Retailer 4
-
$16,467 AUD
£9,108 GBP
View
B
Retailer 5
-
$16,471 AUD
$11,570 USD
View
B
Retailer 6
-
$16,471 AUD
$11,570 USD
View
Most Expensive
B
Jared
147088695 · Nov 2
$17,026 AUD
$11,960 USD
View
6 more retailers have this diamond
Prices start from $13,002 AUDSave up to $4,025 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
$13,002 AUD