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Marquise|Natural|GIA

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 2556274084

Certificate GIA 2556274084

Diamond specifications and retailer prices

From $10,315 AUD
$7,246 USD
As of October 31, 2026
Save $9,419 AUD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $19,734 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 2556274084. Listed at 8 retailers as of October 30, 2026, with prices from $10,315 to $19,734, a $9,419 spread on the same certified stone. NZ Jewellers lists it at $19,734. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle42.52°
Pavilion angle39.89°
OriginNatural
Grading LabGIA
CertificateGIA 2556274084
Dimensions10.51 × 5.94 × 3.91 mm
L/W Ratio1.77
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
10.51 mm5.94 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556274084
Side View
Table 60.0%Crown 42.52°Girdle: THK-ETKPavilion 39.89°Culet: NoneDepth 65.8%

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 31
Current: $19,734 AUD|Low: $9,232 AUD|High: $19,734 AUD|Avg: $11,678 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$9,232 AUD
Retailer 7$10,275 AUD
Retailer 5$10,315 AUD
Retailer 3$11,118 AUD
Retailer 8$11,587 AUD
Retailer 4$11,799 AUD
Retailer 6$12,287 AUD
Retailer 10$12,713 AUD
Retailer 2$16,444 AUD
NZ Jewellers$19,734 AUD

29 data points across 10 retailers

8 retailers$10,315 AUD to $19,734 AUD

Retailer 1
-
$9,232 AUD
$6,485 USD
Price last confirmed 14 days ago
Retailer 2
-
$10,275 AUD
$7,217 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$10,315 AUD
$7,246 USD
View
A
Retailer 4
-
$11,118 AUD
£6,149 GBP
View
Retailer 5
-
$11,587 AUD
$8,139 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$11,799 AUD
$8,288 USD
View
B
Retailer 7
-
$16,444 AUD
£9,095 GBP
View
Most Expensive
B
NZ Jewellers
1a070de7-9243-4aad-9bb6-ea07346a6220 · Oct 30
$19,734 AUD
$13,862 USD
View
7 more retailers have this diamond
Prices start from $10,315 AUDSave up to $9,419 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
$10,315 AUD