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Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6555333072

Certificate GIA 6555333072

Diamond specifications and retailer prices

From $15,834 NZD
₹849,903 INR
As of October 30, 2026
Save $13,075 NZD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $28,909 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 6555333072. Listed at 21 retailers as of October 30, 2026, with prices from $15,834 to $28,909, a $13,075 spread on the same certified stone. NZ Jewellers lists it at $28,909. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555333072
Dimensions11.51 × 6.05 × 3.55 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
11.51 mm6.05 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555333072
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.6%

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: $20,840 NZD|Low: $15,739 NZD|High: $27,414 NZD|Avg: $20,706 NZD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3$15,834 NZD
Retailer 7$16,694 NZD
Retailer 2$18,994 NZD
Retailer 5$19,091 NZD
Retailer 1$20,840 NZD
Retailer 8$21,059 NZD
Retailer 6$25,176 NZD
Retailer 4$27,234 NZD

36 data points across 8 retailers

21 retailers$15,834 NZD to $28,909 NZD

A
Cheapest Retailer
-
$15,834 NZD
₹849,903 INR
A
Retailer 2
-
$15,868 NZD
$8,943 USD
View
A
Retailer 3
-
$16,259 NZD
A$14,098 AUD
View
A
Retailer 4
-
$16,694 NZD
$9,409 USD
View
Final sale: no returns
B+
Retailer 5
-
$17,550 NZD
$9,891 USD
View
B+
Retailer 6
-
$17,764 NZD
$10,012 USD
View
B+
Retailer 7
-
$18,133 NZD
$10,220 USD
View
B+
Retailer 8
-
$18,905 NZD
$10,655 USD
View
B+
Retailer 9
-
$18,994 NZD
£8,429 GBP
View
Retailer 10
-
$19,091 NZD
A$16,554 AUD
View
Price last confirmed 9 days ago
Retailer 11
-
$19,145 NZD
$10,790 USD
View
Price last confirmed 17 days ago
B+
Retailer 12
-
$20,683 NZD
$11,657 USD
View
B+
Retailer 13
-
$20,742 NZD
$11,690 USD
View
B+
Retailer 14
-
$20,840 NZD
€11,186 EUR
View
B+
Retailer 15
-
$21,059 NZD
$11,869 USD
View
B+
Retailer 16
-
$21,231 NZD
$11,966 USD
View
Retailer 17
-
$23,925 NZD
$13,484 USD
View
Price last confirmed 56 days ago
B+
Retailer 18
-
$23,932 NZD
$13,488 USD
View
Retailer 19
-
$25,176 NZD
ZAR 229,228 ZAR
View
Price last confirmed 15 days ago
B
Retailer 20
-
$27,234 NZD
£12,086 GBP
View
Most Expensive
B
NZ Jewellers
8def2af1-4f82-4d96-a1b4-3cf8b885ba7f · Oct 30
$28,909 NZD
$16,293 USD
View
20 more retailers have this diamond
Prices start from $15,834 NZDSave up to $13,075 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
$15,834 NZD