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Round|Natural|GIA

1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1176060108

Certificate GIA 1176060108

Diamond specifications and retailer prices

From $18,564 AUD
$13,010 USD
As of November 1, 2026
Save $12,585 AUD (40%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $37,604 AUD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1176060108. Listed at 22 retailers as of November 1, 2026, with a 68% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1176060108
Dimensions7.37 × 7.33 × 4.49 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.37 mm7.33 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1176060108
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $33,112 AUD|Low: $17,668 AUD|High: $33,511 AUD|Avg: $24,463 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$18,564 AUD
Retailer 7$20,319 AUD
Retailer 3$22,167 AUD
Retailer 5$22,272 AUD
Retailer 8$22,615 AUD
Retailer 2$25,560 AUD
Retailer 4$31,149 AUD
Retailer 1$33,112 AUD

42 data points across 8 retailers

22 retailers$18,564 AUD to $31,149 AUD

B
Cheapest Retailer
-
$18,564 AUD
$13,010 USD
B
Retailer 2
-
$19,393 AUD
$13,591 USD
View
B
Retailer 3
-
$19,491 AUD
$13,660 USD
View
B
Retailer 4
-
$19,855 AUD
CA$19,326 CAD
View
B
Retailer 5
-
$20,010 AUD
View
B
Retailer 6
-
$20,319 AUD
$14,240 USD
View
Final sale: no returns
B
Retailer 7
-
$20,797 AUD
$14,575 USD
View
B
Retailer 8
-
$21,202 AUD
$14,859 USD
View
B
Retailer 9
-
$22,167 AUD
£12,232 GBP
View
Retailer 10
-
$22,272 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$22,615 AUD
$15,849 USD
View
B
Retailer 12
-
$22,969 AUD
$16,097 USD
View
B
Retailer 13
-
$23,852 AUD
$16,716 USD
View
B
Retailer 14
-
$23,929 AUD
$16,770 USD
View
B
Retailer 15
-
$23,929 AUD
$16,770 USD
View
B
Retailer 16
-
$24,621 AUD
$17,255 USD
View
B
Retailer 17
-
$24,728 AUD
$17,330 USD
View
B
Retailer 18
-
$25,560 AUD
€17,060 EUR
View
B
Retailer 19
-
$30,036 AUD
$21,050 USD
View
B
Retailer 20
-
$31,149 AUD
ZAR 352,662 ZAR
View
Retailer 21
-
$33,112 AUD
£18,272 GBP
View
Price under review
Most Expensive
Diamond Quarter
1.51SI1G1108A058N · Nov 2
$37,604 AUD
£20,751 GBP
View
Price under review
21 more retailers have this diamond
Prices start from $18,564 AUDSave up to $12,585 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.

B
1.51ct Round
$18,564 AUD