Round|Natural|GIA

1.50ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6495040258

Certificate GIA 6495040258

Diamond specifications and retailer prices

From $8,413 SGD
$6,581 USD
As of October 30, 2026
Save $7,108 SGD (46%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $18,602 SGD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct 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 6495040258. Listed at 26 retailers as of October 26, 2026, with a 84% 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6495040258
Dimensions7.29 × 7.35 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
7.29 mm7.35 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6495040258
Side View
Table 58.0%Crown 34°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $10,293 SGD|Low: $7,352 SGD|High: $15,687 SGD|Avg: $10,402 SGD|+1.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 4$8,413 SGD
Retailer 3$8,708 SGD
Retailer 17$8,822 SGD
Retailer 14$8,933 SGD
Retailer 13$9,288 SGD
Retailer 21$9,299 SGD
Retailer 2$9,300 SGD
Retailer 9$9,907 SGD
Retailer 6$10,243 SGD
Retailer 20$10,292 SGD
Retailer 1$10,293 SGD
Retailer 10$10,410 SGD
Retailer 18$10,531 SGD
Retailer 5$11,084 SGD
Retailer 8$11,084 SGD
Retailer 11$11,157 SGD
Retailer 19$11,241 SGD
Retailer 7$11,454 SGD
Retailer 12$11,983 SGD
Retailer 15$13,542 SGD
Retailer 16$15,521 SGD

35 data points across 21 retailers

26 retailers$8,413 SGD to $15,521 SGD

A
Cheapest Retailer
-
$8,413 SGD
$6,581 USD
A
Retailer 2
-
$8,662 SGD
A$10,424 AUD
View
A
Retailer 3
-
$8,708 SGD
$6,812 USD
View
B+
Retailer 4
-
$8,822 SGD
$6,901 USD
View
B+
Retailer 5
-
$8,933 SGD
$6,987 USD
View
B+
Retailer 6
-
$9,288 SGD
$7,265 USD
View
B+
Retailer 7
-
$9,299 SGD
$7,274 USD
View
Final sale: no returns
B+
Retailer 8
-
$9,907 SGD
$7,750 USD
View
Retailer 9
-
$10,076 SGD
$7,882 USD
View
Price last confirmed 38 days ago
Retailer 10
-
$10,076 SGD
$7,882 USD
View
Price last confirmed 30 days ago
Retailer 11
-
$10,231 SGD
$8,003 USD
View
Price last confirmed 32 days ago
Retailer 12
-
$10,243 SGD
$8,012 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$10,292 SGD
$8,051 USD
View
B+
Retailer 14
-
$10,293 SGD
£6,340 GBP
View
B+
Retailer 15
-
$10,410 SGD
$8,143 USD
View
Retailer 16
-
$10,531 SGD
A$12,674 AUD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
$11,084 SGD
$8,670 USD
View
B+
Retailer 18
-
$11,084 SGD
$8,670 USD
View
B+
Retailer 19
-
$11,157 SGD
$8,728 USD
View
B+
Retailer 20
-
$11,241 SGD
$8,793 USD
View
B
Retailer 21
-
$11,454 SGD
$8,960 USD
View
Retailer 22
-
$11,626 SGD
$9,094 USD
View
Price last confirmed 39 days ago
B+
Retailer 23
-
$11,983 SGD
€8,927 EUR
View
B
Retailer 24
-
$13,542 SGD
ZAR 171,130 ZAR
View
B
Retailer 25
-
$15,521 SGD
£9,560 GBP
View
Most Expensive
NZ Jewellers
7ab3af2b-e4b4-4889-8735-bb9ac1c585be · Sep 21
$18,602 SGD
$14,551 USD
View
Price last confirmed 40 days ago
25 more retailers have this diamond
Prices start from $8,413 SGDSave up to $7,108 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
1.50ct Round
$8,413 SGD