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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5241044926

Certificate GIA 5241044926

Diamond specifications and retailer prices

From $12,919 AUD
$9,075 USD
As of October 30, 2026
Save $11,493 AUD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $24,412 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 5241044926. Listed at 14 retailers as of October 30, 2026, with prices from $12,919 to $24,412, a $11,493 spread on the same certified stone. NZ Jewellers lists it at $24,412. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241044926
Dimensions12.00 × 5.62 × 3.74 mm
L/W Ratio2.14
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
12.00 mm5.62 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5241044926
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 66.5%

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: Oct 30
Current: $24,412 AUD|Low: $12,676 AUD|High: $24,412 AUD|Avg: $17,193 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$12,919 AUD
Retailer 3$13,591 AUD
Retailer 7$14,647 AUD
Retailer 11$14,647 AUD
Retailer 5$15,692 AUD
Retailer 10$15,867 AUD
Retailer 8$16,112 AUD
Retailer 2$17,616 AUD
Retailer 12$18,309 AUD
Retailer 4$19,271 AUD
Retailer 6$22,999 AUD
NZ Jewellers$24,412 AUD

44 data points across 12 retailers

14 retailers$12,919 AUD to $24,412 AUD

A
Cheapest Retailer
-
$12,919 AUD
$9,075 USD
B+
Retailer 2
-
$13,591 AUD
$9,547 USD
View
B+
Retailer 3
-
$13,595 AUD
$9,550 USD
View
B+
Retailer 4
-
$14,647 AUD
$10,289 USD
View
B+
Retailer 5
-
$14,647 AUD
$10,289 USD
View
Final sale: no returns
B+
Retailer 6
-
$15,625 AUD
$10,976 USD
View
B+
Retailer 7
-
$15,692 AUD
£8,680 GBP
View
B+
Retailer 8
-
$15,867 AUD
$11,146 USD
View
B+
Retailer 9
-
$16,112 AUD
$11,318 USD
View
B
Retailer 10
-
$17,616 AUD
€11,785 EUR
View
B
Retailer 11
-
$18,309 AUD
$12,861 USD
View
Retailer 12
-
$19,271 AUD
$13,537 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$22,999 AUD
£12,721 GBP
View
Most Expensive
B
NZ Jewellers
93ae27c5-7202-4cd9-bc59-3b52e87c3ac4 · Oct 30
$24,412 AUD
$17,148 USD
View
13 more retailers have this diamond
Prices start from $12,919 AUDSave up to $11,493 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
$12,919 AUD