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Marquise|Natural|GIA

1.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1246080001

Certificate GIA 1246080001

Diamond specifications and retailer prices

From $7,214 AUD
HK$39,500 HKD
As of October 30, 2026
Save $9,687 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,902 AUD at NZ Jewellers · As of October 27, 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1246080001. Listed at 16 retailers as of October 27, 2026, with prices from $7,214 to $16,902, a $9,687 spread on the same certified stone. NZ Jewellers lists it at $16,902. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1246080001
Dimensions11.81 × 6.04 × 3.78 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
11.81 mm6.04 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1246080001
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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: $16,902 AUD|Low: $7,105 AUD|High: $17,034 AUD|Avg: $9,873 AUD|-0.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 6$7,214 AUD
Retailer 14$7,301 AUD
Retailer 16$7,334 AUD
Retailer 3$7,694 AUD
Retailer 15$8,011 AUD
Retailer 9$8,185 AUD
Retailer 5$8,340 AUD
Retailer 8$8,450 AUD
Retailer 4$8,571 AUD
Retailer 7$8,618 AUD
Retailer 2$9,031 AUD
Retailer 10$9,323 AUD
Retailer 11$9,914 AUD
Retailer 13$11,024 AUD
Retailer 17$14,732 AUD
Retailer 12$14,967 AUD
NZ Jewellers$16,902 AUD

28 data points across 17 retailers

16 retailers$7,214 AUD to $16,902 AUD

B+
Cheapest Retailer
-
$7,214 AUD
HK$39,500 HKD
B+
Retailer 2
-
$7,301 AUD
$5,117 USD
View
A
Retailer 3
-
$7,334 AUD
$5,140 USD
View
B+
Retailer 4
-
$7,694 AUD
$5,392 USD
View
B+
Retailer 5
-
$8,011 AUD
$5,614 USD
View
Retailer 6
-
$8,185 AUD
SGD 7,752 SGD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$8,340 AUD
View
B+
Retailer 8
-
$8,571 AUD
$6,006 USD
View
B+
Retailer 9
-
$8,618 AUD
$6,040 USD
View
B+
Retailer 10
-
$9,031 AUD
£4,983 GBP
View
B+
Retailer 11
-
$9,323 AUD
$6,534 USD
View
B+
Retailer 12
-
$9,914 AUD
£5,471 GBP
View
B
Retailer 13
-
$11,024 AUD
€7,358 EUR
View
B
Retailer 14
-
$14,732 AUD
$10,325 USD
View
B
Retailer 15
-
$14,967 AUD
£8,259 GBP
View
Most Expensive
B
NZ Jewellers
e5d1e1db-5fcd-4df7-8994-c116cf367122 · Oct 27
$16,902 AUD
$11,845 USD
View
15 more retailers have this diamond
Prices start from $7,214 AUDSave up to $9,687 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
$7,214 AUD