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Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 5566519907

Certificate GIA 5566519907

Diamond specifications and retailer prices

From $2,893 USD
As of October 31, 2026
Save $2,609 USD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,502 USD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5566519907. Listed at 15 retailers as of October 31, 2026, with prices from $2,893 to $5,502, a $2,609 spread on the same certified stone. Helzberg Diamonds lists it at $5,502. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.57°
Pavilion angle36.53°
OriginNatural
Grading LabGIA
CertificateGIA 5566519907
Dimensions11.13 × 5.09 × 2.88 mm
L/W Ratio2.19
Culet sizeNone
Top View
11.13 mm5.09 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566519907
Side View
Table 62.0%Crown 35.57°Girdle: STK-VTKPavilion 36.53°Culet: NDepth 56.6%

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: Oct 31
Current: $5,502 USD|Low: $2,893 USD|High: $5,502 USD|Avg: $3,768 USD
Helzberg Diamonds
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 2, 2026
Retailer 13$2,893 USD
Retailer 6$2,973 USD
Retailer 14$3,119 USD
Retailer 3$3,126 USD
Retailer 9$3,180 USD
Retailer 7$3,382 USD
Retailer 5$3,485 USD
Retailer 11$3,711 USD
Retailer 4$3,788 USD
Retailer 2$3,866 USD
Retailer 8$4,013 USD
Retailer 10$4,879 USD
Retailer 12$5,192 USD
Helzberg Diamonds$5,502 USD

24 data points across 14 retailers

15 retailers$2,893 USD to $5,502 USD

A
Cheapest Retailer
-
$2,893 USD
B+
Retailer 2
-
$2,947 USD
SGD 3,983 SGD
View
B+
Retailer 3
-
$2,973 USD
View
B+
Retailer 4
-
$3,119 USD
View
B+
Retailer 5
-
$3,126 USD
View
B+
Retailer 6
-
$3,180 USD
View
B+
Retailer 7
-
$3,382 USD
£2,663 GBP
View
B+
Retailer 8
-
$3,485 USD
SGD 4,710 SGD
View
B
Retailer 9
-
$3,711 USD
View
B
Retailer 10
-
$3,788 USD
View
B
Retailer 11
-
$3,866 USD
€3,682 EUR
View
B
Retailer 12
-
$4,013 USD
View
B
Retailer 13
-
$4,879 USD
View
B
Retailer 14
-
$5,192 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLLMMLHPPGN · Nov 2
$5,502 USD
View
14 more retailers have this diamond
Prices start from $2,893 USDSave up to $2,609 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
$2,893 USD