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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 $13,935 NZD
SGD 10,613 SGD
As of November 1, 2026
Save $11,039 NZD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $24,973 NZD at With Clarity · As of November 1, 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 November 1, 2026, with prices from $13,935 to $24,973, a $11,039 spread on the same certified stone. With Clarity lists it at $24,973. 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: Nov 1
Current: $15,741 NZD|Low: $13,935 NZD|High: $26,531 NZD|Avg: $17,617 NZD|-6.7%
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 2, 2026
Retailer 5$13,935 NZD
Retailer 8$14,748 NZD
Retailer 7$15,082 NZD
Retailer 9$15,084 NZD
Retailer 10$15,334 NZD
Retailer 6$15,543 NZD
Retailer 1$15,741 NZD
Retailer 3$17,883 NZD
Retailer 11$18,054 NZD
Retailer 4$18,455 NZD
Retailer 2$18,465 NZD
With Clarity$24,973 NZD

39 data points across 12 retailers

13 retailers$13,935 NZD to $24,973 NZD

A
Cheapest Retailer
-
$13,935 NZD
SGD 10,613 SGD
A
Retailer 2
-
$14,748 NZD
$8,312 USD
View
A
Retailer 3
-
$15,082 NZD
$8,500 USD
View
A
Retailer 4
-
$15,084 NZD
SGD 11,488 SGD
View
A
Retailer 5
-
$15,334 NZD
$8,642 USD
View
A
Retailer 6
-
$15,543 NZD
$8,760 USD
View
A
Retailer 7
-
$15,741 NZD
£6,986 GBP
View
B+
Retailer 8
-
$17,883 NZD
$10,079 USD
View
B+
Retailer 9
-
$18,054 NZD
$10,175 USD
View
B+
Retailer 10
-
$18,455 NZD
€9,906 EUR
View
B+
Retailer 11
-
$18,465 NZD
$10,407 USD
View
B+
Retailer 12
-
$19,487 NZD
$10,983 USD
View
Most Expensive
B
With Clarity
6552657128 · Nov 1
$24,973 NZD
$14,075 USD
View
12 more retailers have this diamond
Prices start from $13,935 NZDSave up to $11,039 NZD

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
$13,935 NZD