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Round|Natural|GIA

1.51ct G I1 Round Natural Diamond

EX • G/I1 • GIA 6512377769

Certificate GIA 6512377769

Diamond specifications and retailer prices

From $5,936 AUD
HK$32,500 HKD
As of November 1, 2026
Save $7,585 AUD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $13,521 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 GIA 6512377769. Listed at 10 retailers as of October 30, 2026, with prices from $5,936 to $13,521, a $7,585 spread on the same certified stone. NZ Jewellers lists it at $13,521. 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
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6512377769
Dimensions7.30 × 7.25 × 4.57 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.30 mm7.25 mm1.51 ctG / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512377769
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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 1
Current: $13,521 AUD|Low: $1,125 AUD|High: $13,521 AUD|Avg: $8,240 AUD
NZ Jewellers
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
November 1, 2026
Retailer 7$5,936 AUD
Retailer 8$6,920 AUD
Retailer 14$7,050 AUD
Retailer 10$7,240 AUD
Retailer 9$8,083 AUD
Retailer 13$8,083 AUD
Retailer 11$8,095 AUD
Retailer 4$8,576 AUD
Retailer 5$8,576 AUD
Retailer 6$8,728 AUD
Retailer 3$8,861 AUD
Retailer 2$9,109 AUD
Retailer 12$9,328 AUD
NZ Jewellers$13,521 AUD

24 data points across 14 retailers

10 retailers$5,936 AUD to $13,521 AUD

A
Cheapest Retailer
-
$5,936 AUD
HK$32,500 HKD
B+
Retailer 2
-
$6,920 AUD
$4,850 USD
View
B+
Retailer 3
-
$7,050 AUD
$4,941 USD
View
B+
Retailer 4
-
$7,240 AUD
$5,074 USD
View
B
Retailer 5
-
$8,083 AUD
$5,665 USD
View
B
Retailer 6
-
$8,083 AUD
$5,665 USD
View
B
Retailer 7
-
$8,095 AUD
$5,673 USD
View
B+
Retailer 8
-
$9,109 AUD
€6,080 EUR
View
B
Retailer 9
-
$9,328 AUD
$6,537 USD
View
Most Expensive
B
NZ Jewellers
ac7aa71d-1f65-4b99-a795-a1c712b0aa66 · Oct 30
$13,521 AUD
$9,476 USD
View
9 more retailers have this diamond
Prices start from $5,936 AUDSave up to $7,585 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
$5,936 AUD