Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1568225247

Certificate GIA 1568225247

Diamond specifications and retailer prices

From $11,257 USD
As of October 28, 2026
Save $8,767 USD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $20,024 USD at NZ Jewellers · As of October 27, 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 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 1568225247. Listed at 10 retailers as of October 27, 2026, with prices from $11,257 to $20,024, a $8,767 spread on the same certified stone. NZ Jewellers lists it at $20,024. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568225247
Dimensions11.28 × 5.93 × 3.74 mm
L/W Ratio1.90
Girdle conditionFaceted
Top View
11.28 mm5.93 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568225247
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCuletDepth 63.1%

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: Oct 28
Current: $20,024 USD|Low: $11,257 USD|High: $20,024 USD|Avg: $14,248 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$11,257 USD
Retailer 10$11,428 USD
Retailer 6$12,816 USD
Retailer 3$12,943 USD
Retailer 7$13,016 USD
Retailer 2$13,483 USD
Retailer 9$13,516 USD
Retailer 5$14,630 USD
Retailer 4$18,865 USD
NZ Jewellers$20,024 USD

40 data points across 10 retailers

10 retailers$11,257 USD to $20,024 USD

B+
Cheapest Retailer
-
$11,257 USD
B+
Retailer 2
-
$11,428 USD
CA$15,872 CAD
View
B
Retailer 3
-
$12,816 USD
View
B+
Retailer 4
-
$12,943 USD
£10,191 GBP
View
B
Retailer 5
-
$13,016 USD
View
B+
Retailer 6
-
$13,483 USD
£10,616 GBP
View
B+
Retailer 7
-
$13,516 USD
View
B
Retailer 8
-
$14,630 USD
€13,933 EUR
View
B
Retailer 9
-
$18,865 USD
£14,854 GBP
View
Most Expensive
B
NZ Jewellers
74102820-ddbd-44c3-b994-c6a0c76f7b2f · Oct 27
$20,024 USD
View
9 more retailers have this diamond
Prices start from $11,257 USDSave up to $8,767 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
$11,257 USD