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Round|Natural|GIA

1.51ct G I1 Round Natural Diamond

GD • G/I1 • GIA 2478254564

Certificate GIA 2478254564

Diamond specifications and retailer prices

From $3,092 AUD
₹206,380 INR
As of November 2, 2026
Save $5,633 AUD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,725 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and I1 clarity (included), with a standard cut grade and certified by GIA 2478254564. Listed at 8 retailers as of November 2, 2026, with prices from $3,092 to $8,725, a $5,633 spread on the same certified stone. NZ Jewellers lists it at $8,725. 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
G
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceMedium
Crown angle40°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 2478254564
Dimensions6.89 × 7.09 × 4.65 mm
L/W Ratio1.03
Top View
6.89 mm7.09 mm1.51 ctG / I1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceMedium
CertificateGIA 2478254564
Side View
Table 57.0%Crown 40°Girdle: STK-VTKPavilion 39.8°Culet: NoneDepth 66.4%

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: $8,725 AUD|Low: $3,090 AUD|High: $8,725 AUD|Avg: $4,713 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2$3,092 AUD
Retailer 5$3,738 AUD
Retailer 9$3,814 AUD
Retailer 6$4,174 AUD
Retailer 8$4,174 AUD
Retailer 4$4,333 AUD
Retailer 7$4,816 AUD
Retailer 3$4,863 AUD
Retailer 10$5,317 AUD
NZ Jewellers$8,725 AUD

41 data points across 10 retailers

8 retailers$3,092 AUD to $8,725 AUD

B+
Cheapest Retailer
-
$3,092 AUD
₹206,380 INR
B+
Retailer 2
-
$3,738 AUD
$2,620 USD
View
B+
Retailer 3
-
$4,174 AUD
$2,925 USD
View
B+
Retailer 4
-
$4,174 AUD
$2,925 USD
View
B+
Retailer 5
-
$4,333 AUD
$3,037 USD
View
B+
Retailer 6
-
$4,816 AUD
$3,375 USD
View
B+
Retailer 7
-
$4,863 AUD
€3,246 EUR
View
Most Expensive
C
NZ Jewellers
bdc95a69-17da-4154-bf9d-4a5ae91943b5 · Nov 2
$8,725 AUD
$6,115 USD
View
7 more retailers have this diamond
Prices start from $3,092 AUDSave up to $5,633 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 Round
$3,092 AUD