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Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

GD • L/SI1 • GIA 6382782765

Certificate GIA 6382782765

Diamond specifications and retailer prices

From $3,029 AUD
As of November 6, 2026
Save $1,473 AUD (33%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,502 AUD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6382782765. Listed at 5 retailers as of November 6, 2026, with prices from $3,029 to $4,502, a $1,473 spread on the same certified stone. 77 Diamonds lists it at $4,502. 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
L
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6382782765
Dimensions7.11 × 5.76 × 3.95 mm
L/W Ratio1.23
Top View
7.11 mm5.76 mm1.51 ctL / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6382782765
Side View
Table 66.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 68.6%

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 6
Current: $4,502 AUD|Low: $2,914 AUD|High: $4,546 AUD|Avg: $3,560 AUD|+1.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 3$2,998 AUD
Retailer 4$3,029 AUD
Retailer 2$3,694 AUD
77 Diamonds$4,502 AUD

36 data points across 4 retailers

5 retailers$3,029 AUD to $4,502 AUD

Retailer 1
-
$2,998 AUD
Price last confirmed 10 days ago
B+
Retailer 2
-
$3,029 AUD
View
B+
Retailer 3
-
$3,212 AUD
View
B
Retailer 4
-
$3,694 AUD
View
Most Expensive
B
77 Diamonds
RADMBGCNQWKCM · Nov 7
$4,502 AUD
£2,435 GBP
View
4 more retailers have this diamond
Prices start from $3,029 AUDSave up to $1,473 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
$3,029 AUD