CaratHunter
Plans
Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 7562711418

Certificate GIA 7562711418

Diamond specifications and retailer prices

From $4,357 SGD
As of November 4, 2026
Save $3,450 SGD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,808 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7562711418. Listed at 15 retailers as of November 4, 2026, with prices from $4,357 to $7,808, a $3,450 spread on the same certified stone. Helzberg Diamonds lists it at $7,808. 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

1.20
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.99°
Pavilion angle37.84°
OriginNatural
Grading LabGIA
CertificateGIA 7562711418
Dimensions10.46 × 5.58 × 3.33 mm
L/W Ratio1.87
Culet sizeNone
Top View
10.46 mm5.58 mm1.20 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7562711418
Side View
Table 59.0%Crown 37.99°Girdle: STK-VTKPavilion 37.84°Culet: NDepth 59.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,808 SGD|Low: $4,357 SGD|High: $7,808 SGD|Avg: $5,514 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 6, 2026
Retailer 11$4,357 SGD
Retailer 7$4,379 SGD
Retailer 4$4,429 SGD
Retailer 10$4,464 SGD
Retailer 3$4,657 SGD
Retailer 12$4,723 SGD
Retailer 6$4,756 SGD
Retailer 9$5,001 SGD
Retailer 14$5,542 SGD
Retailer 8$5,602 SGD
Retailer 5$5,604 SGD
Retailer 2$6,045 SGD
Retailer 13$7,349 SGD
Retailer 15$7,751 SGD
Helzberg Diamonds$7,808 SGD

14 data points across 15 retailers

15 retailers$4,357 SGD to $7,808 SGD

B+
Cheapest Retailer
-
$4,357 SGD
B+
Retailer 2
-
$4,379 SGD
View
B
Retailer 3
-
$4,429 SGD
View
B+
Retailer 4
-
$4,464 SGD
View
B
Retailer 5
-
$4,657 SGD
View
B
Retailer 6
-
$4,723 SGD
View
B
Retailer 7
-
$4,756 SGD
View
B
Retailer 8
-
$5,001 SGD
View
B
Retailer 9
-
$5,542 SGD
View
B
Retailer 10
-
$5,602 SGD
View
B
Retailer 11
-
$5,604 SGD
View
B
Retailer 12
-
$6,045 SGD
View
C
Retailer 13
-
$7,349 SGD
View
C
Retailer 14
-
$7,751 SGD
View
Most Expensive
C
Helzberg Diamonds
XZRNLMINHHKHO · Nov 6
$7,808 SGD
$6,092 USD
View
14 more retailers have this diamond
Prices start from $4,357 SGDSave up to $3,450 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.

B+
1.20ct Marquise
$4,357 SGD