Marquise|Natural|GIA

1.00ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6551141394

Certificate GIA 6551141394

Diamond specifications and retailer prices

From $2,659 USD
As of November 5, 2026
Save $420 USD (14%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,308 USD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551141394. Listed at 18 retailers as of November 5, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551141394
Dimensions11.42 × 5.02 × 2.87 mm
L/W Ratio2.27
Top View
11.42 mm5.02 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551141394
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.3%

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 5
Current: $2,659 USD|Low: $2,252 USD|High: $5,215 USD|Avg: $3,264 USD|+0.2%
Retailer 1
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
November 5, 2026
Retailer 14$2,252 USD
Retailer 9$2,372 USD
Retailer 1$2,659 USD
Retailer 12$2,765 USD
Retailer 13$2,784 USD
Retailer 4$2,823 USD
Retailer 5$3,079 USD
Retailer 6$3,119 USD
Retailer 2$3,159 USD
Retailer 3$3,159 USD
Retailer 8$3,163 USD
Retailer 10$3,505 USD
Retailer 11$5,072 USD
Retailer 7$5,149 USD

32 data points across 14 retailers

18 retailers$2,659 USD to $3,079 USD

Retailer 1
-
$2,252 USD
Price last confirmed 15 days ago
Retailer 2
-
$2,372 USD
View
Price last confirmed 17 days ago
B+
Retailer 3
-
$2,659 USD
View
B+
Retailer 4
-
$2,823 USD
View
Retailer 5
-
$3,017 USD
View
Price last confirmed 21 days ago
Retailer 6
-
$3,017 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$3,079 USD
View
Retailer 8
-
$3,119 USD
View
Price last confirmed 45 days ago
Retailer 9
-
$3,133 USD
View
Price last confirmed 21 days ago
Retailer 10
-
$3,159 USD
View
Price last confirmed 19 days ago
Retailer 11
-
$3,159 USD
View
Price last confirmed 16 days ago
Retailer 12
-
$3,163 USD
View
Price last confirmed 16 days ago
Retailer 13
-
$3,481 USD
View
Price last confirmed 18 days ago
Retailer 14
-
$3,599 USD
View
Price last confirmed 45 days ago
Retailer 15
-
$5,072 USD
View
Price last confirmed 16 days ago
Retailer 16
-
$5,149 USD
View
Price last confirmed 15 days ago
Retailer 17
-
$5,434 USD
View
Price last confirmed 47 days ago
Most Expensive
NZ Jewellers
acc5bc18-4dfb-4497-ac9f-97afada2c82f · Oct 17
$6,308 USD
View
Price last confirmed 19 days ago
17 more retailers have this diamond
Prices start from $2,659 USDSave up to $420 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+
1.00ct Marquise
$2,659 USD