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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

VG • G/SI2 • GIA 7542697315

Certificate GIA 7542697315

Diamond specifications and retailer prices

From $5,011 AUD
HK$27,500 HKD
As of November 1, 2026
Save $5,406 AUD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,269 AUD at NZ Jewellers · As of September 25, 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 very-good cut grade and certified by GIA 7542697315. Listed at 14 retailers as of November 1, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 7542697315
Dimensions7.14 × 7.19 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.14 mm7.19 mm1.51 ctG / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7542697315
Side View
Table 59.0%Crown 37.5°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 63.6%

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: $5,936 AUD|Low: $5,011 AUD|High: $11,448 AUD|Avg: $6,971 AUD|-7.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5$5,011 AUD
Retailer 12$5,237 AUD
Retailer 11$5,468 AUD
Retailer 2$5,472 AUD
Retailer 3$5,843 AUD
Retailer 1$5,936 AUD
Retailer 6$6,012 AUD
Retailer 7$6,077 AUD
Retailer 9$6,462 AUD
Retailer 10$7,369 AUD
Retailer 8$10,418 AUD
Retailer 4$10,850 AUD

28 data points across 12 retailers

14 retailers$5,011 AUD to $10,418 AUD

A
Cheapest Retailer
-
$5,011 AUD
HK$27,500 HKD
A
Retailer 2
-
$5,237 AUD
$3,679 USD
View
A
Retailer 3
-
$5,468 AUD
$3,841 USD
View
Final sale: no returns
A
Retailer 4
-
$5,472 AUD
$3,844 USD
View
A
Retailer 5
-
$5,843 AUD
$4,105 USD
View
A
Retailer 6
-
$5,936 AUD
$4,170 USD
View
A
Retailer 7
-
$6,012 AUD
$4,223 USD
View
A
Retailer 8
-
$6,077 AUD
£3,361 GBP
View
A
Retailer 9
-
$6,462 AUD
£3,574 GBP
View
B+
Retailer 10
-
$7,364 AUD
View
A
Retailer 11
-
$7,369 AUD
€4,930 EUR
View
B+
Retailer 12
-
$10,418 AUD
£5,762 GBP
View
Retailer 13
-
$10,850 AUD
$7,622 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
b242053e-19ad-4607-8366-c7aaaa234568 · Sep 25
$12,269 AUD
$8,618 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $5,011 AUDSave up to $5,406 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
$5,011 AUD