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Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6561292508

Certificate GIA 6561292508

Diamond specifications and retailer prices

From $9,129 AUD
SGD 8,646 SGD
As of November 1, 2026
Save $3,811 AUD (29%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,941 AUD at Diamonds Direct · As of November 1, 2026
View at Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded H 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 6561292508. Listed at 13 retailers as of November 1, 2026, with prices from $9,129 to $12,941, a $3,811 spread on the same certified stone. Diamonds Direct lists it at $12,941. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.98°
Pavilion angle39.28°
OriginNatural
Grading LabGIA
CertificateGIA 6561292508
Dimensions11.22 × 5.91 × 3.76 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.22 mm5.91 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561292508
Side View
Table 59.0%Crown 39.98°Girdle: STK-THKPavilion 39.28°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
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: $12,941 AUD|Low: $9,129 AUD|High: $13,607 AUD|Avg: $10,888 AUD|-4.9%
Diamonds Direct
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 11$9,129 AUD
Retailer 7$9,313 AUD
Retailer 13$9,503 AUD
Retailer 10$9,539 AUD
Retailer 8$9,661 AUD
Retailer 9$9,793 AUD
Retailer 6$10,073 AUD
Retailer 12$10,202 AUD
Retailer 4$11,406 AUD
Retailer 3$11,489 AUD
Retailer 5$11,584 AUD
Retailer 2$11,629 AUD
Diamonds Direct$12,941 AUD

31 data points across 13 retailers

13 retailers$9,129 AUD to $12,941 AUD

A
Cheapest Retailer
-
$9,129 AUD
SGD 8,646 SGD
A
Retailer 2
-
$9,313 AUD
$6,527 USD
View
A
Retailer 3
-
$9,503 AUD
SGD 9,000 SGD
View
A
Retailer 4
-
$9,539 AUD
$6,685 USD
View
A
Retailer 5
-
$9,661 AUD
$6,770 USD
View
A
Retailer 6
-
$9,793 AUD
$6,863 USD
View
A
Retailer 7
-
$10,073 AUD
£5,558 GBP
View
B+
Retailer 8
-
$10,202 AUD
$7,150 USD
View
B+
Retailer 9
-
$11,406 AUD
$7,993 USD
View
B+
Retailer 10
-
$11,489 AUD
$8,052 USD
View
B+
Retailer 11
-
$11,584 AUD
$8,118 USD
View
B+
Retailer 12
-
$11,629 AUD
€7,762 EUR
View
Most Expensive
B
Diamonds Direct
1112251 · Nov 1
$12,941 AUD
$9,069 USD
View
12 more retailers have this diamond
Prices start from $9,129 AUDSave up to $3,811 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
$9,129 AUD