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Marquise|Natural|GIA

1.00ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6541818171

Certificate GIA 6541818171

Diamond specifications and retailer prices

From $5,287 NZD
As of November 4, 2026
Save $5,595 NZD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,882 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-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 6541818171. Listed at 16 retailers as of November 4, 2026, with prices from $5,287 to $10,882, a $5,595 spread on the same certified stone. NZ Jewellers lists it at $10,882. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541818171
Dimensions9.77 × 5.26 × 3.19 mm
L/W Ratio1.86
Top View
9.77 mm5.26 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541818171
Side View
Table 60.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 60.6%

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 4
Current: $10,882 NZD|Low: $5,267 NZD|High: $10,882 NZD|Avg: $6,883 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 7$5,287 NZD
Retailer 12$5,659 NZD
Retailer 15$5,659 NZD
Retailer 14$5,876 NZD
Retailer 6$6,086 NZD
Retailer 4$6,422 NZD
Retailer 5$6,422 NZD
Retailer 9$6,463 NZD
Retailer 13$6,529 NZD
Retailer 3$6,635 NZD
Retailer 16$6,696 NZD
Retailer 11$6,863 NZD
Retailer 8$7,076 NZD
Retailer 2$7,623 NZD
Retailer 10$10,415 NZD
NZ Jewellers$10,882 NZD

44 data points across 16 retailers

16 retailers$5,287 NZD to $10,882 NZD

B+
Cheapest Retailer
-
$5,287 NZD
Retailer 2
-
$5,659 NZD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$5,659 NZD
View
B+
Retailer 4
-
$5,876 NZD
View
B
Retailer 5
-
$6,086 NZD
View
B+
Retailer 6
-
$6,422 NZD
View
B+
Retailer 7
-
$6,422 NZD
View
B+
Retailer 8
-
$6,463 NZD
View
B
Retailer 9
-
$6,529 NZD
View
B
Retailer 10
-
$6,635 NZD
View
Retailer 11
-
$6,696 NZD
View
Price last confirmed 32 days ago
B
Retailer 12
-
$6,863 NZD
View
Retailer 13
-
$7,076 NZD
View
Price last confirmed 13 days ago
B
Retailer 14
-
$7,623 NZD
View
B
Retailer 15
-
$10,415 NZD
View
Most Expensive
B
NZ Jewellers
8949f649-d9ed-47ef-bd18-7dc83a964ae4 · Nov 5
$10,882 NZD
$6,117 USD
View
15 more retailers have this diamond
Prices start from $5,287 NZDSave up to $5,595 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.

B+
1.00ct Marquise
$5,287 NZD