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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 6552657128

Certificate GIA 6552657128

Diamond specifications and retailer prices

From HK$61,617 HKD
SGD 10,613 SGD
As of October 30, 2026
Save HK$48,811 HKD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$110,428 HKD at With Clarity · As of October 30, 2026
View at With Clarity

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552657128. Listed at 13 retailers as of October 30, 2026, with prices from HK$61,617 to HK$110,428, a HK$48,811 spread on the same certified stone. With Clarity lists it at HK$110,428. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.86°
Pavilion angle39.05°
OriginNatural
Grading LabGIA
CertificateGIA 6552657128
Dimensions10.95 × 5.90 × 3.67 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.95 mm5.90 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552657128
Side View
Table 62.0%Crown 39.86°Girdle: THN-THKPavilion 39.05°Culet: NoneDepth 62.2%

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 30
Current: HK$70,188 HKD|Low: HK$61,617 HKD|High: HK$117,317 HKD|Avg: HK$77,962 HKD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 1, 2026
Retailer 5HK$61,617 HKD
Retailer 8HK$65,213 HKD
Retailer 7HK$66,688 HKD
Retailer 9HK$66,697 HKD
Retailer 10HK$67,803 HKD
Retailer 6HK$68,728 HKD
Retailer 1HK$70,188 HKD
Retailer 3HK$79,076 HKD
Retailer 11HK$79,830 HKD
Retailer 4HK$81,605 HKD
Retailer 2HK$81,650 HKD
With ClarityHK$110,428 HKD

39 data points across 12 retailers

13 retailersHK$61,617 HKD to HK$110,428 HKD

A
Cheapest Retailer
-
HK$61,617 HKD
SGD 10,613 SGD
A
Retailer 2
-
HK$65,213 HKD
$8,312 USD
View
A
Retailer 3
-
HK$66,688 HKD
$8,500 USD
View
A
Retailer 4
-
HK$66,697 HKD
SGD 11,488 SGD
View
A
Retailer 5
-
HK$67,803 HKD
$8,642 USD
View
A
Retailer 6
-
HK$68,728 HKD
$8,760 USD
View
A
Retailer 7
-
HK$70,188 HKD
£7,044 GBP
View
B+
Retailer 8
-
HK$79,076 HKD
$10,079 USD
View
B+
Retailer 9
-
HK$79,830 HKD
$10,175 USD
View
B+
Retailer 10
-
HK$81,605 HKD
€9,906 EUR
View
B+
Retailer 11
-
HK$81,650 HKD
$10,407 USD
View
B+
Retailer 12
-
HK$86,169 HKD
$10,983 USD
View
Most Expensive
B
With Clarity
6552657128 · Oct 30
HK$110,428 HKD
$14,075 USD
View
12 more retailers have this diamond
Prices start from HK$61,617 HKDSave up to HK$48,811 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$61,617 HKD