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Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6542470783

Certificate GIA 6542470783

Diamond specifications and retailer prices

From $9,154 USD
As of October 28, 2026
Save $7,290 USD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $16,444 USD at NZ Jewellers · As of October 27, 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 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 6542470783. Listed at 14 retailers as of October 27, 2026, with prices from $9,154 to $16,444, a $7,290 spread on the same certified stone. NZ Jewellers lists it at $16,444. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6542470783
Dimensions11.78 × 5.93 × 3.70 mm
L/W Ratio1.99
Top View
11.78 mm5.93 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542470783
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 39.8°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $16,444 USD|Low: $9,102 USD|High: $16,444 USD|Avg: $11,516 USD
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
October 29, 2026
Retailer 3$9,102 USD
Retailer 13$9,154 USD
Retailer 5$9,497 USD
Retailer 12$9,866 USD
Retailer 4$9,949 USD
Retailer 11$10,689 USD
Retailer 2$10,805 USD
Retailer 10$10,853 USD
Retailer 7$11,385 USD
Retailer 9$11,616 USD
Retailer 14$12,333 USD
Retailer 6$12,389 USD
Retailer 15$12,982 USD
Retailer 8$15,491 USD
NZ Jewellers$16,444 USD

39 data points across 15 retailers

14 retailers$9,154 USD to $16,444 USD

B+
Cheapest Retailer
-
$9,154 USD
B
Retailer 2
-
$9,497 USD
CA$13,191 CAD
View
Retailer 3
-
$9,866 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$9,949 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$10,689 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$10,805 USD
£8,508 GBP
View
Retailer 7
-
$10,853 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
$11,385 USD
View
B
Retailer 9
-
$11,616 USD
€11,063 EUR
View
B
Retailer 10
-
$12,333 USD
View
B
Retailer 11
-
$12,389 USD
View
Retailer 12
-
$12,982 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$15,491 USD
£12,198 GBP
View
Most Expensive
B
NZ Jewellers
240641f6-00a5-4299-b027-002ec89afdb8 · Oct 27
$16,444 USD
View
13 more retailers have this diamond
Prices start from $9,154 USDSave up to $7,290 USD

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.

B+
1.51ct Marquise
$9,154 USD