Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 7543765163

Certificate GIA 7543765163

Diamond specifications and retailer prices

From $6,811 SGD
$5,326 USD
As of November 1, 2026
Save $6,304 SGD (48%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $14,418 SGD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant 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 stated by the retailer rather than the lab and certified by GIA 7543765163. Listed at 25 retailers as of October 28, 2026, with a 93% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle46.92°
Pavilion angle29.99°
OriginNatural
Grading LabGIA
CertificateGIA 7543765163
Dimensions7.27 × 5.69 × 3.86 mm
L/W Ratio1.28
Girdle conditionVery Thick
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural, Natural
Top View
7.27 mm5.69 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7543765163
Side View
Table 63.0%Crown 46.92°Girdle: STK-VTKPavilion 29.99°Culet: NoneDepth 67.7%

Caratlytics Score

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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 1
Current: $8,123 SGD|Low: $6,608 SGD|High: $13,172 SGD|Avg: $9,275 SGD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$6,811 SGD
Retailer 9$7,208 SGD
Retailer 2$7,269 SGD
Retailer 11$7,277 SGD
Retailer 1$8,123 SGD
Retailer 5$8,269 SGD
Retailer 3$8,454 SGD
Retailer 4$9,419 SGD
Retailer 7$10,592 SGD
Retailer 6$12,701 SGD
Retailer 8$13,115 SGD

34 data points across 11 retailers

25 retailers$6,811 SGD to $13,115 SGD

A
Cheapest Retailer
-
$6,811 SGD
$5,326 USD
A
Retailer 2
-
$7,208 SGD
$5,636 USD
View
Final sale: no returns
A
Retailer 3
-
$7,269 SGD
$5,684 USD
View
A
Retailer 4
-
$7,277 SGD
$5,690 USD
View
A
Retailer 5
-
$7,700 SGD
$6,021 USD
View
Retailer 6
-
$7,810 SGD
$6,107 USD
View
Price last confirmed 25 days ago
Retailer 7
-
$7,810 SGD
$6,107 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$7,810 SGD
$6,107 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$7,810 SGD
$6,107 USD
View
Price last confirmed 41 days ago
A
Retailer 10
-
$8,123 SGD
£5,001 GBP
View
A
Retailer 11
-
$8,269 SGD
£5,091 GBP
View
B+
Retailer 12
-
$8,364 SGD
$6,540 USD
View
B+
Retailer 13
-
$8,364 SGD
$6,540 USD
View
Retailer 14
-
$8,454 SGD
A$10,170 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$8,645 SGD
$6,760 USD
View
B+
Retailer 16
-
$8,825 SGD
$6,900 USD
View
Retailer 17
-
$9,011 SGD
$7,046 USD
View
Price last confirmed 41 days ago
Retailer 18
-
$9,011 SGD
$7,046 USD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$9,419 SGD
€7,014 EUR
View
Retailer 20
-
$9,504 SGD
$7,431 USD
View
Price last confirmed 18 days ago
B+
Retailer 21
-
$10,592 SGD
ZAR 133,799 ZAR
View
B
Retailer 22
-
$12,701 SGD
£7,820 GBP
View
B
Retailer 23
-
$13,115 SGD
£8,075 GBP
View
Retailer 24
-
$14,418 SGD
$11,274 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
e5c15276-5653-4dca-b6f7-b5f55167e23b · Sep 21
$14,418 SGD
$11,274 USD
View
Price last confirmed 42 days ago
24 more retailers have this diamond
Prices start from $6,811 SGDSave up to $6,304 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.

A
1.51ct Radiant
$6,811 SGD