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Marquise|Natural|GIA

1.00ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 2241069416

Certificate GIA 2241069416

Diamond specifications and retailer prices

From $2,429 SGD
As of October 31, 2026
Save $2,058 SGD (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,488 SGD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2241069416. Listed at 15 retailers as of October 31, 2026, with prices from $2,429 to $4,488, a $2,058 spread on the same certified stone. Helzberg Diamonds lists it at $4,488. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle43.7°
Pavilion angle40.11°
OriginNatural
Grading LabGIA
CertificateGIA 2241069416
Dimensions9.23 × 5.06 × 3.41 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.23 mm5.06 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2241069416
Side View
Table 60.0%Crown 43.7°Girdle: THK-VTKPavilion 40.11°Culet: NoneDepth 67.4%

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: $4,488 SGD|Low: $2,429 SGD|High: $4,531 SGD|Avg: $3,088 SGD|-1.0%
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 2, 2026
Retailer 3$2,429 SGD
Retailer 12$2,482 SGD
Retailer 10$2,503 SGD
Retailer 13$2,528 SGD
Retailer 11$2,539 SGD
Retailer 2$2,668 SGD
Retailer 6$2,726 SGD
Retailer 9$2,740 SGD
Retailer 14$2,865 SGD
Retailer 4$2,979 SGD
Retailer 5$3,185 SGD
Retailer 8$3,525 SGD
Retailer 15$3,815 SGD
Retailer 7$4,103 SGD
Helzberg Diamonds$4,488 SGD

39 data points across 15 retailers

15 retailers$2,429 SGD to $4,488 SGD

A
Cheapest Retailer
-
$2,429 SGD
B+
Retailer 2
-
$2,482 SGD
$1,941 USD
View
B+
Retailer 3
-
$2,503 SGD
$1,957 USD
View
B+
Retailer 4
-
$2,528 SGD
$1,977 USD
View
A
Retailer 5
-
$2,539 SGD
$1,985 USD
View
A
Retailer 6
-
$2,668 SGD
$2,086 USD
View
B+
Retailer 7
-
$2,726 SGD
View
B+
Retailer 8
-
$2,740 SGD
£1,687 GBP
View
B+
Retailer 9
-
$2,865 SGD
$2,240 USD
View
B+
Retailer 10
-
$2,979 SGD
$2,329 USD
View
B+
Retailer 11
-
$3,185 SGD
$2,491 USD
View
B+
Retailer 12
-
$3,525 SGD
€2,625 EUR
View
B
Retailer 13
-
$3,815 SGD
$2,983 USD
View
B
Retailer 14
-
$4,103 SGD
$3,208 USD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKHGMPKHM · Nov 1
$4,488 SGD
$3,509 USD
View
14 more retailers have this diamond
Prices start from $2,429 SGDSave up to $2,058 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
$2,429 SGD