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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 $3,707 SGD
As of October 31, 2026
Save $3,343 SGD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,049 SGD 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 $3,707 to $7,049, a $3,343 spread on the same certified stone. Helzberg Diamonds lists it at $7,049. 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
Colour
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: $7,049 SGD|Low: $3,707 SGD|High: $7,049 SGD|Avg: $4,826 SGD
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
Retailer 15
November 3, 2026
Retailer 15$3,707 SGD
Retailer 8$3,791 SGD
Retailer 7$3,809 SGD
Retailer 3$3,996 SGD
Retailer 4$4,005 SGD
Retailer 11$4,074 SGD
Retailer 9$4,332 SGD
Retailer 6$4,465 SGD
Retailer 13$4,755 SGD
Retailer 5$4,853 SGD
Retailer 2$4,943 SGD
Retailer 10$5,141 SGD
Retailer 12$6,251 SGD
Retailer 14$6,652 SGD
Helzberg Diamonds$7,049 SGD

25 data points across 15 retailers

15 retailers$3,707 SGD to $7,049 SGD

A
Cheapest Retailer
-
$3,707 SGD
B+
Retailer 2
-
$3,791 SGD
View
B+
Retailer 3
-
$3,809 SGD
View
B+
Retailer 4
-
$3,996 SGD
View
B+
Retailer 5
-
$4,005 SGD
View
B+
Retailer 6
-
$4,074 SGD
View
B+
Retailer 7
-
$4,332 SGD
View
B+
Retailer 8
-
$4,465 SGD
View
B
Retailer 9
-
$4,755 SGD
View
B
Retailer 10
-
$4,853 SGD
View
B
Retailer 11
-
$4,943 SGD
View
B
Retailer 12
-
$5,141 SGD
View
B
Retailer 13
-
$6,251 SGD
View
Retailer 14
-
$6,652 SGD
View
Price last confirmed 8 days ago
Most Expensive
B
Helzberg Diamonds
XZRLLMMLHPPGN · Nov 2
$7,049 SGD
$5,502 USD
View
14 more retailers have this diamond
Prices start from $3,707 SGDSave up to $3,343 SGD

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
$3,707 SGD