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Marquise|Natural|GIA

1.51ct I VS2 Marquise Natural Diamond

VG • I/VS2 • GIA 1242018405

Certificate GIA 1242018405

Diamond specifications and retailer prices

From $11,127 AUD
As of November 6, 2026
Save $10,457 AUD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $21,584 AUD at NZ Jewellers · As of November 3, 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 I colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1242018405. Listed at 8 retailers as of November 3, 2026, with prices from $11,127 to $21,584, a $10,457 spread on the same certified stone. NZ Jewellers lists it at $21,584. 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
I
Colour
VS2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle39.53°
Pavilion angle41.85°
OriginNatural
Grading LabGIA
CertificateGIA 1242018405
Dimensions10.85 × 5.93 × 3.98 mm
L/W Ratio1.83
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Needle
Top View
10.85 mm5.93 mm1.51 ctI / VS2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1242018405
Side View
Table 61.0%Crown 39.53°Girdle: MED-VTKPavilion 41.85°Culet: NoneDepth 67.1%

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 6
Current: $21,584 AUD|Low: $11,127 AUD|High: $21,584 AUD|Avg: $12,706 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$11,127 AUD
Retailer 8$11,352 AUD
Retailer 3$11,854 AUD
Retailer 6$12,158 AUD
Retailer 7$12,905 AUD
Retailer 5$13,103 AUD
Retailer 4$17,984 AUD
NZ Jewellers$21,584 AUD

24 data points across 8 retailers

8 retailers$11,127 AUD to $21,584 AUD

A
Cheapest Retailer
-
$11,127 AUD
A
Retailer 2
-
$11,352 AUD
View
A
Retailer 3
-
$11,854 AUD
View
A
Retailer 4
-
$12,158 AUD
View
A
Retailer 5
-
$12,905 AUD
View
A
Retailer 6
-
$13,103 AUD
View
B
Retailer 7
-
$17,984 AUD
View
Most Expensive
B
NZ Jewellers
69bf0260-a668-4836-a4b5-4ad12a20094c · Nov 3
$21,584 AUD
$14,830 USD
View
7 more retailers have this diamond
Prices start from $11,127 AUDSave up to $10,457 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
$11,127 AUD