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1.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1176060108

Certificate GIA 1176060108

Diamond specifications and retailer prices

From $16,632 SGD
$13,010 USD
As of November 1, 2026
Save $11,275 SGD (40%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $33,691 SGD at Diamond Quarter · As of October 29, 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: $29,666 SGD|Low: $15,829 SGD|High: $30,023 SGD|Avg: $21,917 SGD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$16,632 SGD
Retailer 7$18,204 SGD
Retailer 3$19,860 SGD
Retailer 5$19,954 SGD
Retailer 8$20,261 SGD
Retailer 2$22,900 SGD
Retailer 4$27,907 SGD
Retailer 1$29,666 SGD

42 data points across 8 retailers

22 retailers$16,632 SGD to $27,907 SGD

B
Cheapest Retailer
-
$16,632 SGD
$13,010 USD
B
Retailer 2
-
$17,375 SGD
$13,591 USD
View
B
Retailer 3
-
$17,463 SGD
$13,660 USD
View
B
Retailer 4
-
$17,788 SGD
CA$19,326 CAD
View
B
Retailer 5
-
$17,928 SGD
A$21,575 AUD
View
B
Retailer 6
-
$18,204 SGD
$14,240 USD
View
Final sale: no returns
B
Retailer 7
-
$18,633 SGD
$14,575 USD
View
B
Retailer 8
-
$18,996 SGD
$14,859 USD
View
B
Retailer 9
-
$19,860 SGD
£12,232 GBP
View
Retailer 10
-
$19,954 SGD
A$24,013 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$20,261 SGD
$15,849 USD
View
B
Retailer 12
-
$20,578 SGD
$16,097 USD
View
B
Retailer 13
-
$21,370 SGD
$16,716 USD
View
B
Retailer 14
-
$21,439 SGD
$16,770 USD
View
B
Retailer 15
-
$21,439 SGD
$16,770 USD
View
B
Retailer 16
-
$22,059 SGD
$17,255 USD
View
B
Retailer 17
-
$22,155 SGD
$17,330 USD
View
B
Retailer 18
-
$22,900 SGD
€17,060 EUR
View
B
Retailer 19
-
$26,910 SGD
$21,050 USD
View
B
Retailer 20
-
$27,907 SGD
ZAR 352,662 ZAR
View
Retailer 21
-
$29,666 SGD
£18,272 GBP
View
Price under review
Most Expensive
Diamond Quarter
1.51SI1G1108A058N · Oct 29
$33,691 SGD
£20,751 GBP
View
Price under review
21 more retailers have this diamond
Prices start from $16,632 SGDSave up to $11,275 SGD

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
$16,632 SGD