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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1555694587

Certificate GIA 1555694587

Diamond specifications and retailer prices

From $8,762 AUD
$6,155 USD
As of November 2, 2026
Save $1,018 AUD (10%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,985 AUD at Wholesale Diamonds Direct · As of October 21, 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 1555694587. Listed at 14 retailers as of November 2, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 1555694587
Dimensions7.23 × 7.28 × 4.60 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.23 mm7.28 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555694587
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $9,780 AUD|Low: $6,836 AUD|High: $12,575 AUD|Avg: $8,732 AUD
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
Wholesale Diamonds Direct
October 28, 2026
Retailer 3$6,836 AUD
Retailer 6$6,861 AUD
Retailer 10$6,991 AUD
Retailer 12$7,204 AUD
Retailer 13$7,375 AUD
Retailer 4$8,257 AUD
Retailer 14$8,470 AUD
Retailer 11$8,483 AUD
Retailer 7$8,859 AUD
Retailer 2$9,157 AUD
Retailer 8$9,467 AUD
Retailer 9$9,467 AUD
Retailer 1$9,780 AUD
Retailer 5$11,394 AUD
Wholesale Diamonds Direct$11,985 AUD

37 data points across 15 retailers

14 retailers$8,762 AUD to $9,780 AUD

Retailer 1
-
$6,836 AUD
$4,802 USD
Price last confirmed 12 days ago
Retailer 2
-
$6,861 AUD
SGD 6,513 SGD
View
Price last confirmed 10 days ago
Retailer 3
-
$6,991 AUD
$4,911 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$7,204 AUD
SGD 6,838 SGD
View
Price last confirmed 11 days ago
Retailer 5
-
$7,375 AUD
£4,079 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
$8,470 AUD
£4,685 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$8,483 AUD
€5,675 EUR
View
Price last confirmed 10 days ago
A
Retailer 8
-
$8,762 AUD
$6,155 USD
View
B+
Retailer 9
-
$8,859 AUD
$6,223 USD
View
B+
Retailer 10
-
$9,467 AUD
$6,650 USD
View
B+
Retailer 11
-
$9,467 AUD
$6,650 USD
View
B+
Retailer 12
-
$9,780 AUD
$6,870 USD
View
Retailer 13
-
$11,394 AUD
$8,004 USD
View
Price last confirmed 11 days ago
Most Expensive
Wholesale Diamonds Direct
502681368 · Oct 21
$11,985 AUD
$8,419 USD
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from $8,762 AUDSave up to $1,018 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
$8,762 AUD