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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 7568010268

Certificate GIA 7568010268

Diamond specifications and retailer prices

From $10,042 AUD
SGD 9,532 SGD
As of November 1, 2026
Save $6,160 AUD (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $16,202 AUD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

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 7568010268. Listed at 13 retailers as of November 1, 2026, with prices from $10,042 to $16,202, a $6,160 spread on the same certified stone. Helzberg Diamonds lists it at $16,202. 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
FluorescenceFaint
Crown angle40.29°
Pavilion angle40.31°
OriginNatural
Grading LabGIA
CertificateGIA 7568010268
Dimensions10.87 × 5.85 × 3.82 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.87 mm5.85 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7568010268
Side View
Table 60.0%Crown 40.29°Girdle: THK-VTKPavilion 40.31°Culet: NoneDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $16,202 AUD|Low: $10,042 AUD|High: $16,989 AUD|Avg: $12,540 AUD|-4.6%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 8$10,042 AUD
Retailer 5$10,268 AUD
Retailer 10$10,449 AUD
Retailer 11$10,623 AUD
Retailer 9$10,768 AUD
Retailer 6$10,914 AUD
Retailer 3$11,076 AUD
Retailer 4$12,476 AUD
Retailer 12$12,582 AUD
Retailer 2$12,789 AUD
Retailer 13$12,803 AUD
Retailer 7$14,230 AUD
Helzberg Diamonds$16,202 AUD

28 data points across 13 retailers

13 retailers$10,042 AUD to $16,202 AUD

A
Cheapest Retailer
-
$10,042 AUD
SGD 9,532 SGD
A
Retailer 2
-
$10,268 AUD
$7,213 USD
View
A
Retailer 3
-
$10,449 AUD
SGD 9,919 SGD
View
A
Retailer 4
-
$10,623 AUD
$7,462 USD
View
A
Retailer 5
-
$10,768 AUD
$7,564 USD
View
A
Retailer 6
-
$10,914 AUD
£6,036 GBP
View
A
Retailer 7
-
$11,076 AUD
$7,780 USD
View
A
Retailer 8
-
$12,476 AUD
$8,764 USD
View
A
Retailer 9
-
$12,582 AUD
$8,838 USD
View
A
Retailer 10
-
$12,789 AUD
€8,556 EUR
View
A
Retailer 11
-
$12,803 AUD
$8,994 USD
View
B+
Retailer 12
-
$14,230 AUD
$9,996 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRNLMOGHGIMO · Nov 2
$16,202 AUD
$11,381 USD
View
12 more retailers have this diamond
Prices start from $10,042 AUDSave up to $6,160 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
$10,042 AUD