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Marquise|Natural|GIA

1.20ct K SI2 Marquise Natural Diamond

EX • K/SI2

Diamond specifications and retailer prices

From $2,876 SGD
As of November 6, 2026
Save $4,766 SGD (62%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,642 SGD at NZ Jewellers · As of October 21, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 14 retailers as of November 5, 2026, with a 166% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.88 × 5.42 × 3.67 mm
L/W Ratio1.82
Top View
9.88 mm5.42 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.7%

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 6
Current: $7,642 SGD|Low: $2,861 SGD|High: $7,642 SGD|Avg: $3,881 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 9$2,861 SGD
Retailer 10$2,876 SGD
Retailer 2$3,312 SGD
Retailer 4$3,312 SGD
Retailer 6$3,321 SGD
Retailer 8$3,464 SGD
Retailer 3$3,548 SGD
Retailer 7$3,690 SGD
Retailer 5$3,820 SGD
NZ Jewellers$7,642 SGD

9 data points across 10 retailers

14 retailers$2,876 SGD to $7,642 SGD

Retailer 1
-
$2,861 SGD
Price last confirmed 16 days ago
B+
Retailer 2
-
$2,876 SGD
View
Retailer 3
-
$3,312 SGD
View
Price last confirmed 8 days ago
Retailer 4
-
$3,312 SGD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$3,312 SGD
View
B+
Retailer 6
-
$3,321 SGD
View
B+
Retailer 7
-
$3,464 SGD
View
B
Retailer 8
-
$3,548 SGD
View
Retailer 9
-
$3,548 SGD
View
Price last confirmed 15 days ago
B
Retailer 10
-
$3,690 SGD
View
B
Retailer 11
-
$3,820 SGD
View
Retailer 12
-
$3,820 SGD
View
Price last confirmed 16 days ago
C
Retailer 13
-
$7,642 SGD
View
Most Expensive
NZ Jewellers
30410b4d-316e-480d-9828-bf820fcc16cf · Oct 21
$7,642 SGD
$5,983 USD
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from $2,876 SGDSave up to $4,766 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
$2,876 SGD