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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 1555020554

Certificate GIA 1555020554

Diamond specifications and retailer prices

From $12,112 NZD
SGD 9,225 SGD
As of November 1, 2026
Save $3,373 NZD (22%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $15,485 NZD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1555020554. Listed at 8 retailers as of October 30, 2026, with prices from $12,112 to $15,485, a $3,373 spread on the same certified stone. Diamond Exchange Canada lists it at $15,485. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.23°
Pavilion angle39.78°
OriginNatural
Grading LabGIA
CertificateGIA 1555020554
Dimensions11.51 × 6.12 × 3.55 mm
L/W Ratio1.88
Culet sizeNone
Top View
11.51 mm6.12 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1555020554
Side View
Table 60.0%Crown 35.23°Girdle: THN-THKPavilion 39.78°Culet: NoneDepth 57.9%

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: $15,485 NZD|Low: $9,691 NZD|High: $16,034 NZD|Avg: $13,641 NZD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$9,691 NZD
Retailer 6$12,112 NZD
Retailer 7$12,355 NZD
Retailer 2$12,817 NZD
Retailer 9$13,385 NZD
Retailer 5$13,781 NZD
Retailer 4$14,290 NZD
Retailer 3$14,499 NZD
Retailer 8$15,134 NZD
Retailer 11$15,161 NZD
Diamond Exchange Canada$15,485 NZD

24 data points across 11 retailers

8 retailers$12,112 NZD to $15,485 NZD

A
Cheapest Retailer
-
$12,112 NZD
SGD 9,225 SGD
A
Retailer 2
-
$12,355 NZD
SGD 9,410 SGD
View
A
Retailer 3
-
$12,817 NZD
$7,224 USD
View
A
Retailer 4
-
$13,781 NZD
$7,767 USD
View
A
Retailer 5
-
$14,290 NZD
$8,054 USD
View
A
Retailer 6
-
$15,134 NZD
$8,529 USD
View
B+
Retailer 7
-
$15,161 NZD
$8,545 USD
View
Most Expensive
B+
Diamond Exchange Canada
1989721906 · Oct 30
$15,485 NZD
CA$12,121 CAD
View
7 more retailers have this diamond
Prices start from $12,112 NZDSave up to $3,373 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
$12,112 NZD