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Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 6545526638

Certificate GIA 6545526638

Diamond specifications and retailer prices

From $9,704 SGD
HK$59,300 HKD
As of November 1, 2026
Save $11,451 SGD (54%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $21,155 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval 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 stated by the retailer rather than the lab and certified by GIA 6545526638. Listed at 28 retailers as of October 30, 2026, with prices from $9,704 to $21,155, a $11,451 spread on the same certified stone. NZ Jewellers lists it at $21,155. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.56°
Pavilion angle36.73°
OriginNatural
Grading LabGIA
CertificateGIA 6545526638
Dimensions8.60 × 6.26 × 4.07 mm
L/W Ratio1.37
Top View
8.60 mm6.26 mm1.50 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545526638
Side View
Table 64.0%Crown 41.56°Girdle: STK-VTKPavilion 36.73°Culet: NoneDepth 65.0%

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: Nov 1
Current: $9,936 SGD|Low: $9,913 SGD|High: $17,817 SGD|Avg: $12,748 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 1$9,936 SGD
Retailer 11$10,342 SGD
Retailer 2$11,243 SGD
Retailer 3$11,674 SGD
Retailer 9$11,690 SGD
Retailer 6$11,816 SGD
Retailer 5$11,835 SGD
Retailer 8$13,822 SGD
Retailer 10$14,465 SGD
Retailer 7$15,540 SGD
Retailer 4$17,629 SGD

24 data points across 11 retailers

28 retailers$9,704 SGD to $21,155 SGD

A
Cheapest Retailer
-
$9,704 SGD
HK$59,300 HKD
A
Retailer 2
-
$9,936 SGD
₹740,224 INR
View
B+
Retailer 3
-
$10,342 SGD
$8,090 USD
View
Retailer 4
-
$10,733 SGD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$10,932 SGD
$8,551 USD
View
B+
Retailer 6
-
$11,243 SGD
View
B+
Retailer 7
-
$11,275 SGD
$8,820 USD
View
B+
Retailer 8
-
$11,576 SGD
$9,055 USD
View
B+
Retailer 9
-
$11,674 SGD
$9,132 USD
View
Final sale: no returns
B+
Retailer 10
-
$11,676 SGD
$9,133 USD
View
Retailer 11
-
$11,690 SGD
A$14,068 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$11,816 SGD
£7,278 GBP
View
B+
Retailer 13
-
$11,835 SGD
£7,290 GBP
View
B+
Retailer 14
-
$12,643 SGD
$9,890 USD
View
B+
Retailer 15
-
$12,648 SGD
$9,894 USD
View
B
Retailer 16
-
$12,844 SGD
$10,047 USD
View
B+
Retailer 17
-
$12,935 SGD
$10,118 USD
View
B+
Retailer 18
-
$12,947 SGD
$10,128 USD
View
B+
Retailer 19
-
$12,977 SGD
$10,151 USD
View
B+
Retailer 20
-
$13,300 SGD
$10,403 USD
View
B+
Retailer 21
-
$13,822 SGD
€10,297 EUR
View
B
Retailer 22
-
$14,594 SGD
$11,416 USD
View
Retailer 23
-
$15,123 SGD
$11,830 USD
View
Price last confirmed 61 days ago
B
Retailer 24
-
$15,540 SGD
ZAR 196,374 ZAR
View
B
Retailer 25
-
$17,629 SGD
£10,858 GBP
View
Retailer 26
-
$18,268 SGD
$14,290 USD
View
Price last confirmed 63 days ago
B
Retailer 27
-
$18,615 SGD
$14,561 USD
View
Most Expensive
B
NZ Jewellers
fc839084-9101-4a39-9073-29773117fff1 · Oct 30
$21,155 SGD
$16,548 USD
View
27 more retailers have this diamond
Prices start from $9,704 SGDSave up to $11,451 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 Oval
$9,704 SGD