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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1549181187

Certificate GIA 1549181187

Diamond specifications and retailer prices

From $8,869 SGD
HK$54,200 HKD
As of October 30, 2026
Save $7,589 SGD (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $19,646 SGD at NZ Jewellers · As of October 17, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1549181187. Listed at 23 retailers as of October 29, 2026, with a 86% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1549181187
Dimensions7.28 × 7.23 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity, Needle, Pinpoint
Top View
7.28 mm7.23 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549181187
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.0%

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: $9,501 SGD|Low: $9,444 SGD|High: $16,569 SGD|Avg: $12,193 SGD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 1$9,501 SGD
Retailer 11$10,038 SGD
Retailer 2$10,471 SGD
Retailer 3$10,843 SGD
Retailer 5$10,883 SGD
Retailer 9$11,069 SGD
Retailer 4$11,337 SGD
Retailer 6$12,870 SGD
Retailer 10$14,176 SGD
Retailer 8$15,676 SGD
Retailer 7$16,458 SGD

27 data points across 11 retailers

23 retailers$8,869 SGD to $16,458 SGD

A
Cheapest Retailer
-
$8,869 SGD
HK$54,200 HKD
A
Retailer 2
-
$9,501 SGD
₹707,792 INR
View
A
Retailer 3
-
$9,592 SGD
$7,503 USD
View
Retailer 4
-
$9,810 SGD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$10,038 SGD
$7,852 USD
View
A
Retailer 6
-
$10,471 SGD
View
B+
Retailer 7
-
$10,788 SGD
$8,439 USD
View
B+
Retailer 8
-
$10,790 SGD
$8,440 USD
View
Retailer 9
-
$10,843 SGD
$8,482 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$10,843 SGD
$8,482 USD
View
Final sale: no returns
B+
Retailer 11
-
$10,879 SGD
$8,510 USD
View
B+
Retailer 12
-
$10,883 SGD
£6,703 GBP
View
B+
Retailer 13
-
$11,069 SGD
A$13,321 AUD
View
B+
Retailer 14
-
$11,337 SGD
£6,983 GBP
View
Retailer 15
-
$11,747 SGD
$9,189 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$11,927 SGD
$9,330 USD
View
Price last confirmed 15 days ago
B+
Retailer 17
-
$12,006 SGD
$9,392 USD
View
B+
Retailer 18
-
$12,870 SGD
€9,588 EUR
View
Retailer 19
-
$13,554 SGD
$10,602 USD
View
Price last confirmed 12 days ago
Retailer 20
-
$14,176 SGD
ZAR 179,145 ZAR
View
Price last confirmed 8 days ago
B
Retailer 21
-
$15,676 SGD
£9,655 GBP
View
B
Retailer 22
-
$16,458 SGD
£10,137 GBP
View
Most Expensive
NZ Jewellers
1e0e1df4-f9c0-4109-8f23-b540956e2e6e · Oct 17
$19,646 SGD
$15,368 USD
View
Price last confirmed 13 days ago
22 more retailers have this diamond
Prices start from $8,869 SGDSave up to $7,589 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
$8,869 SGD