Marquise|Natural|GIA

1.00ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6555260707

Certificate GIA 6555260707

Diamond specifications and retailer prices

From $2,364 USD
As of October 30, 2026
Save $312 USD (12%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,495 USD at NZ Jewellers · As of October 6, 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 6555260707. Listed at 11 retailers as of October 30, 2026, with a relatively tight 13% 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
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.92°
OriginNatural
Grading LabGIA
CertificateGIA 6555260707
Dimensions9.87 × 5.24 × 3.38 mm
L/W Ratio1.88
Key to symbols
Twinning Wisp, Feather, Crystal, Knot, Needle
Top View
9.87 mm5.24 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555260707
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 40.92°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,514 USD|Low: $1,843 USD|High: $4,719 USD|Avg: $2,869 USD|-5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7$1,843 USD
Retailer 4$2,334 USD
Retailer 8$2,364 USD
Retailer 1$2,514 USD
Retailer 6$2,590 USD
Retailer 9$2,676 USD
Retailer 3$3,095 USD
Retailer 5$3,843 USD
Retailer 2$4,453 USD

32 data points across 9 retailers

11 retailers$2,364 USD to $2,676 USD

Retailer 1
-
$1,843 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$2,364 USD
View
Retailer 3
-
$2,514 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$2,590 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$2,595 USD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
$2,676 USD
View
Retailer 7
-
$2,729 USD
View
Price last confirmed 36 days ago
Retailer 8
-
$3,095 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$3,843 USD
View
Price last confirmed 9 days ago
Retailer 10
-
$4,453 USD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
54a3b1d1-6a89-4b83-8ce1-33f0d50d829a · Oct 6
$5,495 USD
View
Price last confirmed 31 days ago
10 more retailers have this diamond
Prices start from $2,364 USDSave up to $312 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
1.00ct Marquise
$2,364 USD