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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564024266

Certificate GIA 2564024266

Diamond specifications and retailer prices

From $9,493 USD
As of October 30, 2026
Save $6,144 USD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $15,637 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564024266. Listed at 14 retailers as of October 30, 2026, with prices from $9,493 to $15,637, a $6,144 spread on the same certified stone. NZ Jewellers lists it at $15,637. 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

1.51
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564024266
Dimensions11.17 × 6.01 × 3.76 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle
Top View
11.17 mm6.01 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564024266
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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: $15,637 USD|Low: $9,493 USD|High: $16,109 USD|Avg: $11,477 USD|-2.9%
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
October 31, 2026
Retailer 13$9,493 USD
Retailer 11$9,609 USD
Retailer 6$9,746 USD
Retailer 14$10,235 USD
Retailer 2$10,268 USD
Retailer 3$10,356 USD
Retailer 4$10,356 USD
Retailer 5$10,478 USD
Retailer 7$10,529 USD
Retailer 10$11,219 USD
Retailer 12$11,392 USD
Retailer 9$12,945 USD
Retailer 8$14,731 USD
NZ Jewellers$15,637 USD

34 data points across 14 retailers

14 retailers$9,493 USD to $15,637 USD

A
Cheapest Retailer
-
$9,493 USD
A
Retailer 2
-
$9,609 USD
View
Retailer 3
-
$9,746 USD
SGD 13,170 SGD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$10,235 USD
View
A
Retailer 5
-
$10,268 USD
£8,085 GBP
View
A
Retailer 6
-
$10,356 USD
View
B+
Retailer 7
-
$10,356 USD
View
Final sale: no returns
Retailer 8
-
$10,478 USD
A$16,120 AUD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$10,529 USD
£8,290 GBP
View
B+
Retailer 10
-
$11,219 USD
View
B+
Retailer 11
-
$11,392 USD
View
B+
Retailer 12
-
$12,945 USD
View
B+
Retailer 13
-
$14,731 USD
£11,599 GBP
View
Most Expensive
B
NZ Jewellers
8216fa2d-64ce-4c00-9af0-9c4df310cdbc · Oct 30
$15,637 USD
View
13 more retailers have this diamond
Prices start from $9,493 USDSave up to $6,144 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.

A
1.51ct Marquise
$9,493 USD