CaratHunter
Plans
Marquise|Natural|GIA

1.51ct M SI2 Marquise Natural Diamond

VG • M/SI2 • GIA 6552813348

Certificate GIA 6552813348

Diamond specifications and retailer prices

From $3,446 AUD
As of November 6, 2026
Save $4,583 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,029 AUD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552813348. Listed at 12 retailers as of November 5, 2026, with prices from $3,446 to $8,029, a $4,583 spread on the same certified stone. NZ Jewellers lists it at $8,029. 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
M
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552813348
Dimensions10.72 × 5.89 × 3.86 mm
L/W Ratio1.82
Top View
10.72 mm5.89 mm1.51 ctM / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552813348
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 65.5%

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: $8,029 AUD|Low: $3,446 AUD|High: $9,042 AUD|Avg: $5,231 AUD|-11.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$3,446 AUD
Retailer 7$4,128 AUD
Retailer 3$4,307 AUD
Retailer 6$4,609 AUD
Retailer 11$4,692 AUD
Retailer 2$4,714 AUD
Retailer 8$4,787 AUD
Retailer 4$4,817 AUD
Retailer 10$5,318 AUD
Retailer 5$5,363 AUD
NZ Jewellers$8,029 AUD

38 data points across 11 retailers

12 retailers$3,446 AUD to $8,029 AUD

A
Cheapest Retailer
-
$3,446 AUD
B+
Retailer 2
-
$4,128 AUD
View
B+
Retailer 3
-
$4,307 AUD
View
B+
Retailer 4
-
$4,609 AUD
View
Retailer 5
-
$4,692 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,714 AUD
View
B+
Retailer 7
-
$4,787 AUD
View
B+
Retailer 8
-
$4,817 AUD
View
Retailer 9
-
$4,858 AUD
View
Price last confirmed 21 days ago
B
Retailer 10
-
$5,318 AUD
View
B
Retailer 11
-
$5,363 AUD
View
Most Expensive
C
NZ Jewellers
0d147eeb-e720-41ff-9e20-79e68a687eea · Nov 5
$8,029 AUD
$5,517 USD
View
11 more retailers have this diamond
Prices start from $3,446 AUDSave up to $4,583 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
$3,446 AUD