CaratHunter
Plans
Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6552995075

Certificate GIA 6552995075

Diamond specifications and retailer prices

From $7,580 AUD
HK$41,600 HKD
As of November 1, 2026
Save $7,348 AUD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,669 AUD at NZ Jewellers · As of September 27, 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 6552995075. Listed at 15 retailers as of November 1, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552995075
Dimensions7.25 × 7.29 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.25 mm7.29 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552995075
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $9,413 AUD|Low: $7,226 AUD|High: $14,928 AUD|Avg: $9,706 AUD|-1.8%
Retailer 1
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 2$7,580 AUD
Retailer 6$7,673 AUD
Retailer 16$8,006 AUD
Retailer 15$8,022 AUD
Retailer 8$8,442 AUD
Retailer 14$8,473 AUD
Retailer 7$9,199 AUD
Retailer 1$9,413 AUD
Retailer 10$9,653 AUD
Retailer 3$10,207 AUD
Retailer 4$10,364 AUD
Retailer 11$10,423 AUD
Retailer 9$10,549 AUD
Retailer 12$11,601 AUD
Retailer 5$11,680 AUD
Retailer 13$14,928 AUD

25 data points across 16 retailers

15 retailers$7,580 AUD to $14,928 AUD

A
Cheapest Retailer
-
$7,580 AUD
HK$41,600 HKD
A
Retailer 2
-
$8,006 AUD
$5,624 USD
View
A
Retailer 3
-
$8,022 AUD
$5,635 USD
View
A
Retailer 4
-
$8,473 AUD
$5,952 USD
View
Final sale: no returns
A
Retailer 5
-
$9,413 AUD
£5,206 GBP
View
A
Retailer 6
-
$9,653 AUD
£5,339 GBP
View
Retailer 7
-
$9,967 AUD
$7,001 USD
View
Price last confirmed 34 days ago
B+
Retailer 8
-
$10,207 AUD
$7,170 USD
View
B+
Retailer 9
-
$10,364 AUD
$7,280 USD
View
B+
Retailer 10
-
$10,423 AUD
€6,973 EUR
View
B+
Retailer 11
-
$10,549 AUD
$7,410 USD
View
Retailer 12
-
$11,500 AUD
$8,078 USD
View
Price last confirmed 35 days ago
B+
Retailer 13
-
$11,601 AUD
$8,149 USD
View
B
Retailer 14
-
$14,928 AUD
£8,257 GBP
View
Most Expensive
NZ Jewellers
7636fe49-2ea9-4b23-907b-2cc38d964eac · Sep 27
$16,669 AUD
$11,709 USD
View
Price last confirmed 36 days ago
14 more retailers have this diamond
Prices start from $7,580 AUDSave up to $7,348 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
$7,580 AUD