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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6522491371

Certificate GIA 6522491371

Diamond specifications and retailer prices

From $6,909 AUD
$4,853 USD
As of October 23, 2026
12 retailers carry this diamond
Most expensive: $14,625 AUD at NZ Jewellers · As of October 20, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6522491371. Listed at 12 retailers as of October 20, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6522491371
Dimensions7.29 × 7.34 × 4.53 mm
L/W Ratio1.01
Top View
7.29 mm7.34 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522491371
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 23
Current: $14,625 AUD|Low: $6,909 AUD|High: $15,244 AUD|Avg: $9,434 AUD|-3.1%
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
October 23, 2026
Retailer 11$6,909 AUD
Retailer 13$7,312 AUD
Retailer 8$7,922 AUD
Retailer 12$7,922 AUD
Retailer 5$8,100 AUD
Retailer 2$8,290 AUD
Retailer 10$9,141 AUD
Retailer 3$9,211 AUD
Retailer 6$9,211 AUD
Retailer 7$9,495 AUD
Retailer 4$9,524 AUD
Retailer 14$9,643 AUD
Retailer 9$12,952 AUD
NZ Jewellers$14,625 AUD

34 data points across 14 retailers

12 retailers$6,909 AUD to $14,625 AUD

Retailer 1
-
$6,909 AUD
$4,853 USD
Price last confirmed 8 days ago
Retailer 2
-
$7,922 AUD
$5,565 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$7,922 AUD
$5,565 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$7,922 AUD
$5,565 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$8,100 AUD
$5,690 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$8,290 AUD
£4,585 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
$9,141 AUD
$6,421 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$9,495 AUD
€6,352 EUR
View
Price last confirmed 9 days ago
Retailer 9
-
$9,524 AUD
$6,690 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$9,643 AUD
$6,774 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$12,952 AUD
£7,164 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
8578a0c2-96a6-4bd0-9d6b-9f419ea283d1 · Oct 20
$14,625 AUD
$10,273 USD
View
Price last confirmed 10 days ago
11 more retailers have this diamond

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.

1.51ct Round
$6,909 AUD