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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5553045462

Certificate GIA 5553045462

Diamond specifications and retailer prices

From $12,702 NZD
SGD 9,658 SGD
As of November 1, 2026
Save $7,794 NZD (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,496 NZD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D 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 5553045462. Listed at 13 retailers as of November 1, 2026, with prices from $12,702 to $20,496, a $7,794 spread on the same certified stone. Helzberg Diamonds lists it at $20,496. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.62°
Pavilion angle38.57°
OriginNatural
Grading LabGIA
CertificateGIA 5553045462
Dimensions11.04 × 5.95 × 3.64 mm
L/W Ratio1.86
Top View
11.04 mm5.95 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553045462
Side View
Table 60.0%Crown 41.62°Girdle: STK-VTKPavilion 38.57°Culet: NoneDepth 61.3%

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: Nov 1
Current: $20,496 NZD|Low: $12,702 NZD|High: $20,912 NZD|Avg: $15,747 NZD|-1.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$12,702 NZD
Retailer 2$12,731 NZD
Retailer 10$13,220 NZD
Retailer 8$13,439 NZD
Retailer 11$13,623 NZD
Retailer 6$13,806 NZD
Retailer 3$15,773 NZD
Retailer 12$15,910 NZD
Retailer 5$16,183 NZD
Retailer 4$16,191 NZD
Retailer 7$18,004 NZD
Helzberg Diamonds$20,496 NZD

29 data points across 12 retailers

13 retailers$12,702 NZD to $20,496 NZD

A
Cheapest Retailer
-
$12,702 NZD
SGD 9,658 SGD
A
Retailer 2
-
$12,731 NZD
$7,163 USD
View
A
Retailer 3
-
$13,220 NZD
SGD 10,052 SGD
View
A
Retailer 4
-
$13,439 NZD
$7,561 USD
View
A
Retailer 5
-
$13,623 NZD
$7,665 USD
View
A
Retailer 6
-
$13,806 NZD
£6,117 GBP
View
A
Retailer 7
-
$15,773 NZD
$8,875 USD
View
A
Retailer 8
-
$15,910 NZD
$8,952 USD
View
A
Retailer 9
-
$16,183 NZD
€8,672 EUR
View
A
Retailer 10
-
$16,191 NZD
$9,110 USD
View
B+
Retailer 11
-
$17,432 NZD
$9,808 USD
View
B+
Retailer 12
-
$18,004 NZD
$10,130 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRLLLJGKLKMI · Nov 1
$20,496 NZD
$11,532 USD
View
12 more retailers have this diamond
Prices start from $12,702 NZDSave up to $7,794 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
$12,702 NZD