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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 2245021536

Certificate GIA 2245021536

Diamond specifications and retailer prices

From $5,907 AUD
SGD 5,614 SGD
As of October 29, 2026
Save $4,685 AUD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,592 AUD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 2245021536. Listed at 8 retailers as of October 26, 2026, with prices from $5,907 to $10,592, a $4,685 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,592. 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2245021536
Dimensions7.30 × 4.57 × 4.57 mm
L/W Ratio1.60
Culet sizeNone
Top View
7.30 mm4.57 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245021536
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.6%

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: Oct 29
Current: $7,456 AUD|Low: $5,907 AUD|High: $11,607 AUD|Avg: $7,701 AUD|-6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 28, 2026
Retailer 5$5,907 AUD
Retailer 3$6,143 AUD
Retailer 7$6,330 AUD
Retailer 2$6,524 AUD
Retailer 6$7,330 AUD
Retailer 1$7,456 AUD
Retailer 4$7,584 AUD
Wholesale Diamonds Direct$10,592 AUD

42 data points across 8 retailers

8 retailers$5,907 AUD to $10,592 AUD

A
Cheapest Retailer
-
$5,907 AUD
SGD 5,614 SGD
A
Retailer 2
-
$6,143 AUD
$4,320 USD
View
A
Retailer 3
-
$6,330 AUD
SGD 6,016 SGD
View
A
Retailer 4
-
$6,524 AUD
£3,613 GBP
View
A
Retailer 5
-
$7,330 AUD
$5,155 USD
View
A
Retailer 6
-
$7,456 AUD
€4,994 EUR
View
A
Retailer 7
-
$7,584 AUD
£4,200 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
364013156 · Oct 26
$10,592 AUD
$7,449 USD
View
7 more retailers have this diamond
Prices start from $5,907 AUDSave up to $4,685 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
$5,907 AUD