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Round|Natural|IGI

1.51ct G I1 Round Natural Diamond

EX • G/I1 • IGI 628465332

Shape and cutting style on the report: Round brilliant

Certificate IGI 628465332

Diamond specifications and retailer prices

From $2,655 AUD
₹177,236 INR
As of November 2, 2026
Save $5,204 AUD (66%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,859 AUD at NZ Jewellers · As of October 30, 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 top-tier cut grade and certified by IGI 628465332. Listed at 8 retailers as of October 30, 2026, with prices from $2,655 to $7,859, a $5,204 spread on the same certified stone. NZ Jewellers lists it at $7,859. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 628465332
Dimensions7.31 × 7.34 × 4.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.31 mm7.34 mm1.51 ctG / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 628465332
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $7,859 AUD|Low: $2,650 AUD|High: $7,859 AUD|Avg: $4,332 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$2,655 AUD
Retailer 4$3,367 AUD
Retailer 6$3,760 AUD
Retailer 8$3,760 AUD
Retailer 5$3,904 AUD
Retailer 7$4,338 AUD
Retailer 3$4,675 AUD
NZ Jewellers$7,859 AUD

43 data points across 8 retailers

8 retailers$2,655 AUD to $7,859 AUD

A
Cheapest Retailer
-
$2,655 AUD
₹177,236 INR
A
Retailer 2
-
$3,367 AUD
$2,360 USD
View
B+
Retailer 3
-
$3,760 AUD
$2,635 USD
View
B+
Retailer 4
-
$3,760 AUD
$2,635 USD
View
B+
Retailer 5
-
$3,904 AUD
$2,736 USD
View
B+
Retailer 6
-
$4,338 AUD
$3,040 USD
View
A
Retailer 7
-
$4,675 AUD
€3,120 EUR
View
Most Expensive
B
NZ Jewellers
6dcddb49-6113-4fd4-ab53-4a129925cb7b · Oct 30
$7,859 AUD
$5,508 USD
View
7 more retailers have this diamond
Prices start from $2,655 AUDSave up to $5,204 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.

A
1.51ct Round
$2,655 AUD