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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 $11,958 SGD
$9,350 USD
As of November 1, 2026
Save $8,040 SGD (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,998 SGD 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 $11,958 to $19,998, a $8,040 spread on the same certified stone. NZ Jewellers lists it at $19,998. 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
Colour
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: Nov 1
Current: $19,998 SGD|Low: $11,958 SGD|High: $20,602 SGD|Avg: $14,559 SGD|-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
November 2, 2026
Retailer 11$11,958 SGD
Retailer 9$12,104 SGD
Retailer 6$12,464 SGD
Retailer 8$12,824 SGD
Retailer 7$13,044 SGD
Retailer 3$13,090 SGD
Retailer 2$13,221 SGD
Retailer 4$13,244 SGD
Retailer 5$13,400 SGD
Retailer 10$14,132 SGD
Retailer 14$14,569 SGD
Retailer 13$16,555 SGD
Retailer 12$18,839 SGD
NZ Jewellers$19,998 SGD

33 data points across 14 retailers

14 retailers$11,958 SGD to $19,998 SGD

A
Cheapest Retailer
-
$11,958 SGD
$9,350 USD
A
Retailer 2
-
$12,104 SGD
$9,464 USD
View
Retailer 3
-
$12,464 SGD
View
Price last confirmed 21 days ago
A
Retailer 4
-
$12,824 SGD
£7,896 GBP
View
B+
Retailer 5
-
$13,044 SGD
$10,199 USD
View
Final sale: no returns
A
Retailer 6
-
$13,090 SGD
$10,235 USD
View
A
Retailer 7
-
$13,221 SGD
£8,140 GBP
View
A
Retailer 8
-
$13,244 SGD
$10,356 USD
View
Retailer 9
-
$13,400 SGD
A$16,120 AUD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$14,132 SGD
$11,050 USD
View
B+
Retailer 11
-
$14,569 SGD
$11,392 USD
View
B+
Retailer 12
-
$16,555 SGD
$12,945 USD
View
B+
Retailer 13
-
$18,839 SGD
£11,599 GBP
View
Most Expensive
B
NZ Jewellers
8216fa2d-64ce-4c00-9af0-9c4df310cdbc · Oct 30
$19,998 SGD
$15,637 USD
View
13 more retailers have this diamond
Prices start from $11,958 SGDSave up to $8,040 SGD

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
$11,958 SGD