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Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1559720724

Certificate GIA 1559720724

Diamond specifications and retailer prices

From HK$68,418 HKD
$8,720 USD
As of November 1, 2026
Save HK$57,151 HKD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$125,569 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 G 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 1559720724. Listed at 15 retailers as of October 30, 2026, with prices from HK$68,418 to HK$125,569, a HK$57,151 spread on the same certified stone. NZ Jewellers lists it at HK$125,569. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559720724
Dimensions11.28 × 5.93 × 3.72 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.28 mm5.93 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559720724
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: 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 1
Current: HK$82,878 HKD|Low: HK$69,140 HKD|High: HK$118,299 HKD|Avg: HK$88,354 HKD
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
November 2, 2026
Retailer 12HK$69,909 HKD
Retailer 13HK$70,552 HKD
Retailer 11HK$74,616 HKD
Retailer 14HK$81,502 HKD
Retailer 2HK$81,647 HKD
Retailer 8HK$81,799 HKD
Retailer 1HK$82,878 HKD
Retailer 4HK$86,307 HKD
Retailer 6HK$86,307 HKD
Retailer 5HK$89,210 HKD
Retailer 7HK$90,491 HKD
Retailer 3HK$98,508 HKD
Retailer 10HK$110,685 HKD
Retailer 9HK$117,661 HKD

14 data points across 14 retailers

15 retailersHK$68,418 HKD to HK$125,569 HKD

B+
Cheapest Retailer
-
HK$68,418 HKD
$8,720 USD
B+
Retailer 2
-
HK$69,909 HKD
$8,910 USD
View
B+
Retailer 3
-
HK$70,552 HKD
$8,992 USD
View
B+
Retailer 4
-
HK$74,616 HKD
$9,510 USD
View
B+
Retailer 5
-
HK$81,647 HKD
$10,406 USD
View
B+
Retailer 6
-
HK$81,799 HKD
£8,209 GBP
View
B+
Retailer 7
-
HK$82,878 HKD
$10,563 USD
View
B
Retailer 8
-
HK$86,307 HKD
$11,000 USD
View
B
Retailer 9
-
HK$86,307 HKD
$11,000 USD
View
B+
Retailer 10
-
HK$89,210 HKD
$11,370 USD
View
B+
Retailer 11
-
HK$90,491 HKD
€10,984 EUR
View
B
Retailer 12
-
HK$94,177 HKD
$12,003 USD
View
B
Retailer 13
-
HK$110,685 HKD
ZAR 227,899 ZAR
View
B
Retailer 14
-
HK$117,661 HKD
£11,808 GBP
View
Most Expensive
B
NZ Jewellers
24a3d514-e6c5-44a4-93f6-2286ae657d6d · Oct 30
HK$125,569 HKD
$16,004 USD
View
14 more retailers have this diamond
Prices start from HK$68,418 HKDSave up to HK$57,151 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$68,418 HKD