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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

VG • G/SI2 • GIA 2566054835

Certificate GIA 2566054835

Diamond specifications and retailer prices

From $6,141 AUD
HK$33,700 HKD
As of November 1, 2026
Save $7,298 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,439 AUD at NZ Jewellers · As of October 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 very-good cut grade and certified by GIA 2566054835. Listed at 14 retailers as of October 27, 2026, with prices from $6,141 to $13,439, a $7,298 spread on the same certified stone. NZ Jewellers lists it at $13,439. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 2566054835
Dimensions7.10 × 7.19 × 4.60 mm
L/W Ratio1.01
Top View
7.10 mm7.19 mm1.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566054835
Side View
Table 58.0%Crown 38°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 64.4%

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 1
Current: $13,439 AUD|Low: $6,086 AUD|High: $13,587 AUD|Avg: $8,954 AUD|-1.1%
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
November 1, 2026
Retailer 9$6,141 AUD
Retailer 6$6,274 AUD
Retailer 4$7,007 AUD
Retailer 8$7,788 AUD
Retailer 5$7,906 AUD
Retailer 3$8,035 AUD
Retailer 10$8,035 AUD
Retailer 13$8,255 AUD
Retailer 2$9,052 AUD
Retailer 12$9,270 AUD
Retailer 11$11,996 AUD
Retailer 7$12,797 AUD
NZ Jewellers$13,439 AUD

34 data points across 13 retailers

14 retailers$6,141 AUD to $13,439 AUD

A
Cheapest Retailer
-
$6,141 AUD
HK$33,700 HKD
A
Retailer 2
-
$6,274 AUD
₹419,729 INR
View
A
Retailer 3
-
$7,007 AUD
$4,922 USD
View
A
Retailer 4
-
$7,788 AUD
£4,307 GBP
View
Retailer 5
-
$7,906 AUD
SGD 7,505 SGD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$8,035 AUD
$5,644 USD
View
A
Retailer 7
-
$8,035 AUD
$5,644 USD
View
Retailer 8
-
$8,124 AUD
$5,707 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$8,255 AUD
$5,799 USD
View
B+
Retailer 10
-
$9,052 AUD
€6,056 EUR
View
B+
Retailer 11
-
$9,270 AUD
$6,512 USD
View
B
Retailer 12
-
$11,996 AUD
$8,426 USD
View
B
Retailer 13
-
$12,797 AUD
£7,078 GBP
View
Most Expensive
B
NZ Jewellers
78394b5f-aa35-4bb9-8ee6-fc903bd4e44c · Oct 27
$13,439 AUD
$9,440 USD
View
13 more retailers have this diamond
Prices start from $6,141 AUDSave up to $7,298 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
$6,141 AUD