Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2544827819

Certificate GIA 2544827819

Diamond specifications and retailer prices

From $10,009 USD
As of November 1, 2026
Save $7,971 USD (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $17,980 USD 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544827819. Listed at 20 retailers as of October 30, 2026, with prices from $10,009 to $17,980, a $7,971 spread on the same certified stone. NZ Jewellers lists it at $17,980. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544827819
Dimensions11.54 × 6.17 × 3.72 mm
L/W Ratio1.87
Top View
11.54 mm6.17 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544827819
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.3%

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: Nov 1
Current: $12,155 USD|Low: $11,564 USD|High: $17,051 USD|Avg: $13,334 USD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3$11,661 USD
Retailer 6$11,724 USD
Retailer 7$11,867 USD
Retailer 1$12,155 USD
Retailer 2$12,984 USD
Retailer 5$15,849 USD
Retailer 4$16,848 USD

36 data points across 7 retailers

20 retailers$10,009 USD to $17,980 USD

B+
Cheapest Retailer
-
$10,009 USD
B+
Retailer 2
-
$10,068 USD
View
B+
Retailer 3
-
$10,650 USD
View
B+
Retailer 4
-
$10,788 USD
View
B+
Retailer 5
-
$10,878 USD
View
B+
Retailer 6
-
$11,661 USD
£9,182 GBP
View
B+
Retailer 7
-
$11,687 USD
View
Retailer 8
-
$11,724 USD
A$18,037 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$11,867 USD
View
B+
Retailer 10
-
$11,958 USD
View
B+
Retailer 11
-
$12,155 USD
£9,571 GBP
View
B
Retailer 12
-
$12,590 USD
View
B
Retailer 13
-
$12,590 USD
View
B
Retailer 14
-
$12,984 USD
€12,366 EUR
View
B
Retailer 15
-
$13,010 USD
View
B
Retailer 16
-
$13,485 USD
View
Retailer 17
-
$14,192 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$15,849 USD
ZAR 256,042 ZAR
View
B
Retailer 19
-
$16,848 USD
£13,266 GBP
View
Most Expensive
B
NZ Jewellers
cddb2d76-c4a3-4bb6-8b7a-65550c87b1c7 · Oct 30
$17,980 USD
View
19 more retailers have this diamond
Prices start from $10,009 USDSave up to $7,971 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
$10,009 USD