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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7558706544

Certificate GIA 7558706544

Diamond specifications and retailer prices

From HK$63,585 HKD
$8,104 USD
As of November 2, 2026
Save HK$58,014 HKD (48%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$121,599 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 7558706544. Listed at 23 retailers as of October 30, 2026, with prices from HK$63,585 to HK$121,599, a HK$58,014 spread on the same certified stone. NZ Jewellers lists it at HK$121,599. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.32°
Pavilion angle41.54°
OriginNatural
Grading LabGIA
CertificateGIA 7558706544
Dimensions11.37 × 6.01 × 3.77 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.37 mm6.01 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558706544
Side View
Table 61.0%Crown 39.32°Girdle: MED-THKPavilion 41.54°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$121,599 HKD|Low: HK$62,934 HKD|High: HK$121,599 HKD|Avg: HK$85,060 HKD
NZ Jewellers
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
November 2, 2026
Retailer 3HK$63,585 HKD
Retailer 6HK$70,468 HKD
Retailer 5HK$72,302 HKD
Retailer 14HK$72,961 HKD
Retailer 16HK$72,961 HKD
Retailer 4HK$79,042 HKD
Retailer 9HK$79,180 HKD
Retailer 12HK$80,239 HKD
Retailer 15HK$80,258 HKD
Retailer 8HK$81,176 HKD
Retailer 13HK$81,199 HKD
Retailer 7HK$85,836 HKD
Retailer 2HK$91,899 HKD
Retailer 11HK$107,187 HKD
Retailer 10HK$113,945 HKD
NZ JewellersHK$121,599 HKD

43 data points across 16 retailers

23 retailersHK$63,585 HKD to HK$121,599 HKD

B+
Cheapest Retailer
-
HK$63,585 HKD
$8,104 USD
B+
Retailer 2
-
HK$68,316 HKD
$8,707 USD
View
B
Retailer 3
-
HK$70,468 HKD
$8,981 USD
View
B
Retailer 4
-
HK$72,302 HKD
$9,215 USD
View
B
Retailer 5
-
HK$72,961 HKD
$9,299 USD
View
B
Retailer 6
-
HK$72,961 HKD
$9,299 USD
View
Final sale: no returns
B
Retailer 7
-
HK$73,573 HKD
$9,377 USD
View
B
Retailer 8
-
HK$79,042 HKD
$10,074 USD
View
B+
Retailer 9
-
HK$79,180 HKD
£7,946 GBP
View
Retailer 10
-
HK$80,239 HKD
A$15,733 AUD
View
Price last confirmed 10 days ago
B
Retailer 11
-
HK$80,258 HKD
$10,229 USD
View
Retailer 12
-
HK$81,176 HKD
$10,346 USD
View
Price last confirmed 11 days ago
Retailer 13
-
HK$81,199 HKD
$10,349 USD
View
Price last confirmed 12 days ago
Retailer 14
-
HK$85,836 HKD
$10,940 USD
View
Price last confirmed 11 days ago
Retailer 15
-
HK$85,836 HKD
$10,940 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
HK$86,417 HKD
$11,014 USD
View
B
Retailer 17
-
HK$87,058 HKD
$11,096 USD
View
Retailer 18
-
HK$88,739 HKD
$11,310 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
HK$91,203 HKD
$11,624 USD
View
B
Retailer 20
-
HK$91,899 HKD
€11,155 EUR
View
B
Retailer 21
-
HK$107,187 HKD
ZAR 220,698 ZAR
View
B
Retailer 22
-
HK$113,945 HKD
£11,435 GBP
View
Most Expensive
B
NZ Jewellers
516e55f6-e4ab-4615-9d7f-69bdbc8f4a91 · Oct 30
HK$121,599 HKD
$15,498 USD
View
22 more retailers have this diamond
Prices start from HK$63,585 HKDSave up to HK$58,014 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.

B+
1.50ct Marquise
HK$63,585 HKD