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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5242051169

Certificate GIA 5242051169

Diamond specifications and retailer prices

From $13,054 AUD
$9,170 USD
As of November 1, 2026
Save $10,559 AUD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,613 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 D 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 5242051169. Listed at 13 retailers as of October 30, 2026, with prices from $13,054 to $23,613, a $10,559 spread on the same certified stone. NZ Jewellers lists it at $23,613. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.61°
OriginNatural
Grading LabGIA
CertificateGIA 5242051169
Dimensions11.10 × 5.99 × 3.81 mm
L/W Ratio1.85
Key to symbols
Crystal, Feather, Needle
Top View
11.10 mm5.99 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242051169
Side View
Table 59.0%CrownGirdle: THK-VTKPavilion 38.61°Culet: NoneDepth 63.5%

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 1
Current: $23,613 AUD|Low: $12,099 AUD|High: $23,912 AUD|Avg: $16,316 AUD|-1.3%
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
November 2, 2026
Retailer 4$12,099 AUD
Retailer 13$13,054 AUD
Retailer 5$13,392 AUD
Retailer 14$13,878 AUD
Retailer 3$14,031 AUD
Retailer 10$15,348 AUD
Retailer 6$15,479 AUD
Retailer 9$15,584 AUD
Retailer 11$17,040 AUD
Retailer 12$17,040 AUD
Retailer 2$17,507 AUD
Retailer 8$17,610 AUD
Retailer 7$22,126 AUD
NZ Jewellers$23,613 AUD

29 data points across 14 retailers

13 retailers$13,054 AUD to $23,613 AUD

Retailer 1
-
$12,099 AUD
HK$66,400 HKD
Price last confirmed 46 days ago
A
Retailer 2
-
$13,054 AUD
$9,170 USD
View
B+
Retailer 3
-
$13,878 AUD
$9,749 USD
View
B+
Retailer 4
-
$14,031 AUD
$9,856 USD
View
Final sale: no returns
B+
Retailer 5
-
$15,348 AUD
$10,781 USD
View
B+
Retailer 6
-
$15,479 AUD
View
B+
Retailer 7
-
$15,584 AUD
$10,947 USD
View
B+
Retailer 8
-
$17,040 AUD
$11,970 USD
View
B+
Retailer 9
-
$17,040 AUD
$11,970 USD
View
B+
Retailer 10
-
$17,507 AUD
€11,712 EUR
View
B
Retailer 11
-
$17,610 AUD
$12,370 USD
View
B
Retailer 12
-
$22,126 AUD
£12,238 GBP
View
Most Expensive
B
NZ Jewellers
ce952af8-967f-4956-9ae3-8000720bccdb · Oct 30
$23,613 AUD
$16,587 USD
View
12 more retailers have this diamond
Prices start from $13,054 AUDSave up to $10,559 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
$13,054 AUD