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Marquise|Natural|GIA

0.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7561579444

Certificate GIA 7561579444

Diamond specifications and retailer prices

From $432 USD
As of November 2, 2026
Save $1,504 USD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,936 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded I 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 7561579444. Listed at 12 retailers as of October 30, 2026, with prices from $432 to $1,936, a $1,504 spread on the same certified stone. NZ Jewellers lists it at $1,936. 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

0.51
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7561579444
Dimensions7.90 × 4.15 × 2.67 mm
L/W Ratio1.90
Girdle conditionVery Thick
Top View
7.90 mm4.15 mm0.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7561579444
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,936 USD|Low: $432 USD|High: $1,936 USD|Avg: $871 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
November 2, 2026
Retailer 4$432 USD
Retailer 2$461 USD
Retailer 12$570 USD
Retailer 9$700 USD
Retailer 11$744 USD
Retailer 3$749 USD
Retailer 5$758 USD
Retailer 6$759 USD
Retailer 7$911 USD
Retailer 8$953 USD
Retailer 10$1,427 USD
NZ Jewellers$1,936 USD

17 data points across 12 retailers

12 retailers$432 USD to $1,936 USD

A
Cheapest Retailer
-
$432 USD
Final sale: no returns
A
Retailer 2
-
$461 USD
₹43,858 INR
View
Retailer 3
-
$570 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$700 USD
View
B+
Retailer 5
-
$744 USD
View
B+
Retailer 6
-
$749 USD
View
B+
Retailer 7
-
$758 USD
£597 GBP
View
B+
Retailer 8
-
$759 USD
£598 GBP
View
B+
Retailer 9
-
$911 USD
€868 EUR
View
B
Retailer 10
-
$953 USD
ZAR 15,391 ZAR
View
B
Retailer 11
-
$1,427 USD
£1,124 GBP
View
Most Expensive
B
NZ Jewellers
32b23af8-fc48-47df-87b6-91c93d04c05e · Oct 30
$1,936 USD
View
11 more retailers have this diamond
Prices start from $432 USDSave up to $1,504 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.

A
0.51ct Marquise
$432 USD