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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 7558057424

Certificate GIA 7558057424

Diamond specifications and retailer prices

From $10,291 USD
As of November 2, 2026
Save $6,858 USD (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $17,148 USD at NZ Jewellers · As of November 3, 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 7558057424. Listed at 9 retailers as of November 2, 2026, with prices from $10,291 to $17,148, a $6,858 spread on the same certified stone. NZ Jewellers lists it at $17,148. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7558057424
Dimensions11.57 × 6.01 × 3.63 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Top View
11.57 mm6.01 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7558057424
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $17,148 USD|Low: $10,291 USD|High: $17,772 USD|Avg: $13,416 USD|-3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 8$10,291 USD
Retailer 2$11,115 USD
Retailer 7$11,473 USD
Retailer 3$11,593 USD
Retailer 9$11,697 USD
Retailer 4$12,069 USD
Retailer 6$15,116 USD
Retailer 5$16,069 USD
NZ Jewellers$17,148 USD

33 data points across 9 retailers

9 retailers$10,291 USD to $17,148 USD

B+
Cheapest Retailer
-
$10,291 USD
B+
Retailer 2
-
$11,115 USD
£8,752 GBP
View
B+
Retailer 3
-
$11,473 USD
View
B+
Retailer 4
-
$11,593 USD
£9,128 GBP
View
Retailer 5
-
$11,697 USD
A$17,996 AUD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
$12,069 USD
€11,494 EUR
View
B
Retailer 7
-
$15,116 USD
ZAR 244,196 ZAR
View
B
Retailer 8
-
$16,069 USD
£12,653 GBP
View
Most Expensive
B
NZ Jewellers
74e0fd8e-56f3-488c-8aa1-41bcb4223ae2 · Nov 3
$17,148 USD
View
8 more retailers have this diamond
Prices start from $10,291 USDSave up to $6,858 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
$10,291 USD