Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2554854633

Certificate GIA 2554854633

Diamond specifications and retailer prices

From $6,780 USD
As of November 1, 2026
Save $8,031 USD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,811 USD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554854633. Listed at 15 retailers as of October 30, 2026, with prices from $6,780 to $14,811, a $8,031 spread on the same certified stone. NZ Jewellers lists it at $14,811. 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

1.50
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554854633
Dimensions13.08 × 5.79 × 3.32 mm
L/W Ratio2.26
Culet sizeNone
Top View
13.08 mm5.79 mm1.50 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554854633
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $14,811 USD|Low: $6,780 USD|High: $14,811 USD|Avg: $8,809 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 11$6,780 USD
Retailer 15$6,932 USD
Retailer 14$6,934 USD
Retailer 13$7,405 USD
Retailer 3$7,467 USD
Retailer 6$7,889 USD
Retailer 4$8,023 USD
Retailer 12$8,146 USD
Retailer 2$8,187 USD
Retailer 9$8,638 USD
Retailer 5$9,257 USD
Retailer 10$9,678 USD
Retailer 7$9,752 USD
Retailer 8$12,342 USD
NZ Jewellers$14,811 USD

33 data points across 15 retailers

15 retailers$6,780 USD to $14,811 USD

B+
Cheapest Retailer
-
$6,780 USD
B+
Retailer 2
-
$6,932 USD
View
B+
Retailer 3
-
$6,934 USD
View
Retailer 4
-
$7,405 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$7,467 USD
View
B
Retailer 6
-
$7,889 USD
View
B
Retailer 7
-
$8,023 USD
View
B
Retailer 8
-
$8,146 USD
View
B
Retailer 9
-
$8,187 USD
£6,446 GBP
View
B
Retailer 10
-
$8,638 USD
£6,802 GBP
View
B
Retailer 11
-
$9,257 USD
View
B
Retailer 12
-
$9,678 USD
€9,217 EUR
View
Retailer 13
-
$9,752 USD
View
Price last confirmed 17 days ago
B
Retailer 14
-
$12,342 USD
£9,718 GBP
View
Most Expensive
C
NZ Jewellers
150c9ee6-7095-4d96-b34d-863aac97d91e · Oct 30
$14,811 USD
View
14 more retailers have this diamond
Prices start from $6,780 USDSave up to $8,031 USD

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.

B+
1.50ct Marquise
$6,780 USD