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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564234109

Certificate GIA 2564234109

Diamond specifications and retailer prices

From HK$75,620 HKD
As of October 31, 2026
Save HK$68,121 HKD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$143,741 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded E 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 2564234109. Listed at 11 retailers as of October 30, 2026, with prices from HK$75,620 to HK$143,741, a HK$68,121 spread on the same certified stone. NZ Jewellers lists it at HK$143,741. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.04°
OriginNatural
Grading LabGIA
CertificateGIA 2564234109
Dimensions12.15 × 5.72 × 3.73 mm
L/W Ratio2.12
Key to symbols
Twinning Wisp, Crystal, Feather, Natural
Top View
12.15 mm5.72 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2564234109
Side View
Table 55.0%CrownGirdle: THK-VTKPavilion 41.04°Culet: NoneDepth 65.3%

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 31
Current: HK$143,741 HKD|Low: HK$75,620 HKD|High: HK$145,051 HKD|Avg: HK$105,159 HKD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9HK$75,620 HKD
Retailer 7HK$83,538 HKD
Retailer 2HK$89,763 HKD
Retailer 8HK$96,784 HKD
Retailer 11HK$102,465 HKD
Retailer 3HK$104,073 HKD
Retailer 5HK$106,137 HKD
Retailer 6HK$106,534 HKD
Retailer 4HK$130,984 HKD
Retailer 10HK$136,647 HKD
NZ JewellersHK$143,741 HKD

11 data points across 11 retailers

11 retailersHK$75,620 HKD to HK$143,741 HKD

A
Cheapest Retailer
-
HK$75,620 HKD
B+
Retailer 2
-
HK$83,538 HKD
€10,141 EUR
View
B+
Retailer 3
-
HK$89,763 HKD
$11,441 USD
View
B+
Retailer 4
-
HK$96,784 HKD
£9,713 GBP
View
B
Retailer 5
-
HK$102,465 HKD
$13,060 USD
View
B+
Retailer 6
-
HK$104,073 HKD
$13,265 USD
View
B+
Retailer 7
-
HK$106,137 HKD
$13,528 USD
View
B+
Retailer 8
-
HK$106,534 HKD
€12,932 EUR
View
B
Retailer 9
-
HK$130,984 HKD
$16,695 USD
View
B
Retailer 10
-
HK$136,647 HKD
£13,714 GBP
View
Most Expensive
B
NZ Jewellers
221050fd-396e-4ec7-8e7b-c1425e163983 · Oct 30
HK$143,741 HKD
$18,321 USD
View
10 more retailers have this diamond
Prices start from HK$75,620 HKDSave up to HK$68,121 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
1.51ct Marquise
HK$75,620 HKD