CaratHunter
Plans
Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7556372547

Certificate GIA 7556372547

Diamond specifications and retailer prices

From $15,591 NZD
As of November 6, 2026
Save $4,181 NZD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $19,773 NZD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded D 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 7556372547. Listed at 8 retailers as of November 5, 2026, with prices from $15,591 to $19,773, a $4,181 spread on the same certified stone. Blue Nile lists it at $19,773. 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

1.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556372547
Dimensions11.44 × 5.93 × 3.75 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Twinning Wisp, Needle
Top View
11.44 mm5.93 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7556372547
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 63.3%

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 6
Current: $19,773 NZD|Low: $15,133 NZD|High: $20,422 NZD|Avg: $17,444 NZD|-3.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$15,591 NZD
Retailer 4$15,800 NZD
Retailer 3$16,805 NZD
Retailer 5$16,924 NZD
Retailer 6$17,646 NZD
Retailer 7$18,149 NZD
Blue Nile$19,773 NZD

45 data points across 7 retailers

8 retailers$15,591 NZD to $19,773 NZD

A
Cheapest Retailer
-
$15,591 NZD
A
Retailer 2
-
$15,800 NZD
View
A
Retailer 3
-
$16,805 NZD
View
B+
Retailer 4
-
$16,924 NZD
View
B+
Retailer 5
-
$17,646 NZD
View
Final sale: no returns
B+
Retailer 6
-
$18,149 NZD
View
B+
Retailer 7
-
$18,586 NZD
View
Most Expensive
B+
Blue Nile
29351770 · Nov 5
$19,773 NZD
$10,961 USD
View
7 more retailers have this diamond
Prices start from $15,591 NZDSave up to $4,181 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
1.50ct Marquise
$15,591 NZD