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Marquise|Natural|GIA

1.20ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 7551514553

Certificate GIA 7551514553

Diamond specifications and retailer prices

From $3,651 SGD
As of November 5, 2026
Save $4,188 SGD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,840 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551514553. Listed at 14 retailers as of November 5, 2026, with prices from $3,651 to $7,840, a $4,188 spread on the same certified stone. NZ Jewellers lists it at $7,840. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551514553
Dimensions10.58 × 5.54 × 3.42 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Top View
10.58 mm5.54 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7551514553
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.7%

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 5
Current: $4,365 SGD|Low: $3,651 SGD|High: $7,615 SGD|Avg: $4,791 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,651 SGD
Retailer 6$3,653 SGD
Retailer 8$3,828 SGD
Retailer 9$4,233 SGD
Retailer 1$4,365 SGD
Retailer 3$4,628 SGD
Retailer 2$4,932 SGD
Retailer 4$5,492 SGD
Retailer 5$7,504 SGD

41 data points across 9 retailers

14 retailers$3,651 SGD to $7,840 SGD

B+
Cheapest Retailer
-
$3,651 SGD
B+
Retailer 2
-
$3,653 SGD
View
B+
Retailer 3
-
$3,828 SGD
View
B
Retailer 4
-
$4,077 SGD
View
Retailer 5
-
$4,077 SGD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$4,233 SGD
View
B+
Retailer 7
-
$4,365 SGD
View
B
Retailer 8
-
$4,628 SGD
View
B
Retailer 9
-
$4,703 SGD
View
B
Retailer 10
-
$4,932 SGD
View
Retailer 11
-
$5,098 SGD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$5,492 SGD
View
B
Retailer 13
-
$7,504 SGD
View
Most Expensive
C
NZ Jewellers
e008bd19-801b-4e79-8965-be14f37f4664 · Nov 5
$7,840 SGD
$6,117 USD
View
13 more retailers have this diamond
Prices start from $3,651 SGDSave up to $4,188 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
$3,651 SGD