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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6551478297

Certificate GIA 6551478297

Diamond specifications and retailer prices

From $9,927 SGD
$7,765 USD
As of October 30, 2026
Save $9,116 SGD (48%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $19,043 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551478297. Listed at 7 retailers as of October 30, 2026, with prices from $9,927 to $19,043, a $9,116 spread on the same certified stone. NZ Jewellers lists it at $19,043. 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

1.51
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.89°
Pavilion angle39.38°
OriginNatural
Grading LabGIA
CertificateGIA 6551478297
Dimensions10.88 × 6.12 × 3.71 mm
L/W Ratio1.78
Girdle conditionExtremely Thick
Key to symbols
Feather, Crystal, Cavity, Needle
Top View
10.88 mm6.12 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551478297
Side View
Table 66.0%Crown 35.89°Girdle: VTK-ETKPavilion 39.38°Culet: NoneDepth 60.6%

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: $19,043 SGD|Low: $9,927 SGD|High: $19,147 SGD|Avg: $12,517 SGD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$9,927 SGD
Retailer 7$10,010 SGD
Retailer 2$10,761 SGD
Retailer 4$11,385 SGD
Retailer 3$11,561 SGD
Retailer 5$15,953 SGD
NZ Jewellers$19,043 SGD

19 data points across 7 retailers

7 retailers$9,927 SGD to $19,043 SGD

A
Cheapest Retailer
-
$9,927 SGD
$7,765 USD
A
Retailer 2
-
$10,010 SGD
$7,830 USD
View
A
Retailer 3
-
$10,761 SGD
£6,628 GBP
View
A
Retailer 4
-
$11,385 SGD
$8,906 USD
View
A
Retailer 5
-
$11,561 SGD
$9,043 USD
View
B
Retailer 6
-
$15,953 SGD
£9,826 GBP
View
Most Expensive
B
NZ Jewellers
a75fa58f-1818-4df9-bf64-a4d62544547a · Oct 30
$19,043 SGD
$14,896 USD
View
6 more retailers have this diamond
Prices start from $9,927 SGDSave up to $9,116 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
$9,927 SGD