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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 $768 NZD
$432 USD
As of November 2, 2026
Save $2,673 NZD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,441 NZD 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 $768 to $3,441, a $2,673 spread on the same certified stone. NZ Jewellers lists it at $3,441. 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
Colour
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: $3,441 NZD|Low: $768 NZD|High: $3,441 NZD|Avg: $1,549 NZD
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$768 NZD
Retailer 2$818 NZD
Retailer 12$1,013 NZD
Retailer 9$1,244 NZD
Retailer 11$1,322 NZD
Retailer 3$1,331 NZD
Retailer 5$1,347 NZD
Retailer 6$1,349 NZD
Retailer 7$1,620 NZD
Retailer 8$1,693 NZD
Retailer 10$2,537 NZD
NZ Jewellers$3,441 NZD

17 data points across 12 retailers

12 retailers$768 NZD to $3,441 NZD

A
Cheapest Retailer
-
$768 NZD
$432 USD
Final sale: no returns
A
Retailer 2
-
$818 NZD
₹43,858 INR
View
Retailer 3
-
$1,013 NZD
$570 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$1,244 NZD
$700 USD
View
B+
Retailer 5
-
$1,322 NZD
$744 USD
View
B+
Retailer 6
-
$1,331 NZD
$749 USD
View
B+
Retailer 7
-
$1,347 NZD
£597 GBP
View
B+
Retailer 8
-
$1,349 NZD
£598 GBP
View
B+
Retailer 9
-
$1,620 NZD
€868 EUR
View
B
Retailer 10
-
$1,693 NZD
ZAR 15,391 ZAR
View
B
Retailer 11
-
$2,537 NZD
£1,124 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
NZ Jewellers
32b23af8-fc48-47df-87b6-91c93d04c05e · Oct 30
$3,441 NZD
$1,936 USD
View
11 more retailers have this diamond
Prices start from $768 NZDSave up to $2,673 NZD

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
$768 NZD