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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 5553449493

Certificate GIA 5553449493

Diamond specifications and retailer prices

From $11,002 AUD
$7,728 USD
As of October 30, 2026
Save $10,099 AUD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $21,101 AUD 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 5553449493. Listed at 8 retailers as of October 30, 2026, with prices from $11,002 to $21,101, a $10,099 spread on the same certified stone. NZ Jewellers lists it at $21,101. 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
FluorescenceFaint
Crown angle42.66°
Pavilion angle41.11°
OriginNatural
Grading LabGIA
CertificateGIA 5553449493
Dimensions10.52 × 5.90 × 3.99 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Knot, Cavity
Top View
10.52 mm5.90 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553449493
Side View
Table 62.0%Crown 42.66°Girdle: THK-VTKPavilion 41.11°Culet: NoneDepth 67.6%

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: $21,101 AUD|Low: $11,002 AUD|High: $21,429 AUD|Avg: $13,985 AUD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7$11,002 AUD
Retailer 8$11,090 AUD
Retailer 3$11,924 AUD
Retailer 5$12,616 AUD
Retailer 4$12,811 AUD
Retailer 2$14,321 AUD
Retailer 6$17,677 AUD
NZ Jewellers$21,101 AUD

21 data points across 8 retailers

8 retailers$11,002 AUD to $21,101 AUD

A
Cheapest Retailer
-
$11,002 AUD
$7,728 USD
A
Retailer 2
-
$11,090 AUD
$7,790 USD
View
A
Retailer 3
-
$11,924 AUD
£6,595 GBP
View
A
Retailer 4
-
$12,616 AUD
$8,862 USD
View
A
Retailer 5
-
$12,811 AUD
$8,999 USD
View
B+
Retailer 6
-
$14,321 AUD
$10,060 USD
View
B
Retailer 7
-
$17,677 AUD
£9,777 GBP
View
Most Expensive
B
NZ Jewellers
2671f3ff-f2b6-4de7-866d-a6afb4124282 · Oct 30
$21,101 AUD
$14,822 USD
View
7 more retailers have this diamond
Prices start from $11,002 AUDSave up to $10,099 AUD

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
$11,002 AUD