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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 $23,123 NZD
$13,010 USD
As of November 1, 2026
Save $15,675 NZD (40%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $46,839 NZD 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

How it works →
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: $41,243 NZD|Low: $22,007 NZD|High: $41,740 NZD|Avg: $30,470 NZD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$23,123 NZD
Retailer 7$25,309 NZD
Retailer 3$27,610 NZD
Retailer 5$27,741 NZD
Retailer 8$28,168 NZD
Retailer 2$31,837 NZD
Retailer 4$38,798 NZD
Retailer 1$41,243 NZD

42 data points across 8 retailers

22 retailers$23,123 NZD to $38,798 NZD

B
Cheapest Retailer
-
$23,123 NZD
$13,010 USD
B
Retailer 2
-
$24,155 NZD
$13,591 USD
View
B
Retailer 3
-
$24,278 NZD
$13,660 USD
View
B
Retailer 4
-
$24,730 NZD
CA$19,326 CAD
View
B
Retailer 5
-
$24,924 NZD
A$21,575 AUD
View
B
Retailer 6
-
$25,309 NZD
$14,240 USD
View
Final sale: no returns
B
Retailer 7
-
$25,904 NZD
$14,575 USD
View
B
Retailer 8
-
$26,409 NZD
$14,859 USD
View
B
Retailer 9
-
$27,610 NZD
£12,232 GBP
View
Retailer 10
-
$27,741 NZD
A$24,013 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$28,168 NZD
$15,849 USD
View
B
Retailer 12
-
$28,609 NZD
$16,097 USD
View
B
Retailer 13
-
$29,709 NZD
$16,716 USD
View
B
Retailer 14
-
$29,805 NZD
$16,770 USD
View
B
Retailer 15
-
$29,805 NZD
$16,770 USD
View
B
Retailer 16
-
$30,667 NZD
$17,255 USD
View
B
Retailer 17
-
$30,801 NZD
$17,330 USD
View
B
Retailer 18
-
$31,837 NZD
€17,060 EUR
View
B
Retailer 19
-
$37,412 NZD
$21,050 USD
View
B
Retailer 20
-
$38,798 NZD
ZAR 352,662 ZAR
View
Retailer 21
-
$41,243 NZD
£18,272 GBP
View
Price under review
Most Expensive
Diamond Quarter
1.51SI1G1108A058N · Nov 2
$46,839 NZD
£20,751 GBP
View
Price under review
21 more retailers have this diamond
Prices start from $23,123 NZDSave up to $15,675 NZD

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
$23,123 NZD