Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6551278598

Certificate GIA 6551278598

Diamond specifications and retailer prices

From HK$37,659 HKD
As of October 31, 2026
Save HK$37,360 HKD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$103,971 HKD at NZ Jewellers · As of August 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 6551278598. Listed at 18 retailers as of October 29, 2026, with a 99% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551278598
Dimensions8.92 × 6.52 × 4.11 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.92 mm6.52 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551278598
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 63.0%

Caratlytics Score

How it works →
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: Oct 31
Current: HK$62,257 HKD|Low: HK$37,258 HKD|High: HK$81,964 HKD|Avg: HK$52,156 HKD|-12.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5HK$37,659 HKD
Retailer 12HK$42,893 HKD
Retailer 2HK$44,171 HKD
Retailer 10HK$44,297 HKD
Retailer 11HK$46,745 HKD
Retailer 9HK$47,074 HKD
Retailer 6HK$48,583 HKD
Retailer 4HK$48,949 HKD
Retailer 3HK$50,070 HKD
Retailer 7HK$55,343 HKD
Retailer 1HK$62,257 HKD
Retailer 8HK$75,019 HKD

35 data points across 12 retailers

18 retailersHK$37,659 HKD to HK$75,019 HKD

A
Cheapest Retailer
-
HK$37,659 HKD
Retailer 2
-
HK$42,893 HKD
SGD 7,388 SGD
View
Price last confirmed 17 days ago
A
Retailer 3
-
HK$44,171 HKD
$5,630 USD
View
A
Retailer 4
-
HK$44,297 HKD
$5,646 USD
View
A
Retailer 5
-
HK$46,745 HKD
$5,958 USD
View
Final sale: no returns
A
Retailer 6
-
HK$47,074 HKD
$6,000 USD
View
Retailer 7
-
HK$48,078 HKD
$6,128 USD
View
Price last confirmed 23 days ago
A
Retailer 8
-
HK$48,583 HKD
£4,876 GBP
View
Retailer 9
-
HK$50,070 HKD
A$9,818 AUD
View
Price last confirmed 21 days ago
Retailer 10
-
HK$50,644 HKD
$6,455 USD
View
Price last confirmed 21 days ago
A
Retailer 11
-
HK$55,343 HKD
€6,718 EUR
View
Retailer 12
-
HK$58,741 HKD
$7,487 USD
View
Price last confirmed 31 days ago
Retailer 13
-
HK$60,098 HKD
$7,660 USD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
HK$62,257 HKD
ZAR 128,193 ZAR
View
Retailer 15
-
HK$70,078 HKD
$8,932 USD
View
Price last confirmed 46 days ago
B+
Retailer 16
-
HK$75,019 HKD
£7,529 GBP
View
Retailer 17
-
HK$87,119 HKD
$11,104 USD
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
5d398fb2-e47e-4d8d-9c9c-99cae6142bd8 · Aug 30
HK$103,971 HKD
$13,252 USD
View
Price last confirmed 62 days ago
17 more retailers have this diamond
Prices start from HK$37,659 HKDSave up to HK$37,360 HKD

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
HK$37,659 HKD