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Marquise|Natural|GIA

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 7566212506

Certificate GIA 7566212506

Diamond specifications and retailer prices

From $8,299 AUD
₹553,920 INR
As of November 2, 2026
Save $10,068 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,367 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566212506. Listed at 16 retailers as of October 30, 2026, with prices from $8,299 to $18,367, a $10,068 spread on the same certified stone. NZ Jewellers lists it at $18,367. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7566212506
Dimensions11.42 × 6.02 × 3.79 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Twinning Wisp, Crystal, Needle, Indented Natural
Top View
11.42 mm6.02 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7566212506
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.9%

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 2
Current: $18,367 AUD|Low: $8,282 AUD|High: $19,272 AUD|Avg: $11,313 AUD|-4.7%
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
November 2, 2026
Retailer 2$8,299 AUD
Retailer 5$8,758 AUD
Retailer 15$9,546 AUD
Retailer 6$9,577 AUD
Retailer 16$9,736 AUD
Retailer 13$10,137 AUD
Retailer 11$10,268 AUD
Retailer 9$10,639 AUD
Retailer 3$10,702 AUD
Retailer 7$10,981 AUD
Retailer 14$11,151 AUD
Retailer 8$11,321 AUD
Retailer 10$11,336 AUD
Retailer 4$12,671 AUD
Retailer 12$15,306 AUD
NZ Jewellers$18,367 AUD

23 data points across 16 retailers

16 retailers$8,299 AUD to $18,367 AUD

A
Cheapest Retailer
-
$8,299 AUD
₹553,920 INR
A
Retailer 2
-
$8,758 AUD
$6,138 USD
View
Final sale: no returns
Retailer 3
-
$9,546 AUD
$6,690 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$9,577 AUD
$6,712 USD
View
A
Retailer 5
-
$9,736 AUD
$6,823 USD
View
Retailer 6
-
$10,137 AUD
$7,104 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$10,268 AUD
£5,666 GBP
View
A
Retailer 8
-
$10,639 AUD
£5,871 GBP
View
A
Retailer 9
-
$10,702 AUD
$7,500 USD
View
A
Retailer 10
-
$10,981 AUD
$7,696 USD
View
Retailer 11
-
$11,151 AUD
$7,815 USD
View
B+
Retailer 12
-
$11,321 AUD
$7,934 USD
View
A
Retailer 13
-
$11,336 AUD
€7,566 EUR
View
B+
Retailer 14
-
$12,671 AUD
$8,880 USD
View
B+
Retailer 15
-
$15,306 AUD
£8,446 GBP
View
Most Expensive
B
NZ Jewellers
24875a1d-6188-4197-9dc9-9e117889c7ac · Oct 30
$18,367 AUD
$12,872 USD
View
15 more retailers have this diamond
Prices start from $8,299 AUDSave up to $10,068 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
$8,299 AUD