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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6561258837

Certificate GIA 6561258837

Diamond specifications and retailer prices

From $7,172 SGD
As of November 5, 2026
Save $6,234 SGD (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,591 SGD at NZ Jewellers · As of October 17, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561258837. Listed at 21 retailers as of November 4, 2026, with a 87% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561258837
Dimensions10.60 × 5.52 × 3.42 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Cloud, Needle, Indented Natural, Natural
Top View
10.60 mm5.52 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561258837
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.0%

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: $8,852 SGD|Low: $6,036 SGD|High: $13,406 SGD|Avg: $8,280 SGD|+10.4%
Retailer 1
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
Retailer 16
November 6, 2026
Retailer 7$6,036 SGD
Retailer 8$6,951 SGD
Retailer 4$7,113 SGD
Retailer 11$7,172 SGD
Retailer 16$7,754 SGD
Retailer 12$7,957 SGD
Retailer 6$8,010 SGD
Retailer 5$8,032 SGD
Retailer 9$8,139 SGD
Retailer 15$8,421 SGD
Retailer 13$8,446 SGD
Retailer 2$8,816 SGD
Retailer 1$8,852 SGD
Retailer 3$11,059 SGD
Retailer 10$11,133 SGD
Retailer 14$13,406 SGD

34 data points across 16 retailers

21 retailers$7,172 SGD to $13,406 SGD

Retailer 1
-
$6,036 SGD
Price last confirmed 12 days ago
Retailer 2
-
$6,708 SGD
View
Price last confirmed 16 days ago
Retailer 3
-
$6,951 SGD
View
Price last confirmed 15 days ago
Retailer 4
-
$7,113 SGD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$7,172 SGD
View
Retailer 6
-
$7,754 SGD
View
Price last confirmed 14 days ago
B
Retailer 7
-
$7,957 SGD
View
Retailer 8
-
$8,010 SGD
View
Price last confirmed 15 days ago
Retailer 9
-
$8,032 SGD
View
Price last confirmed 28 days ago
Retailer 10
-
$8,125 SGD
View
Price last confirmed 22 days ago
Retailer 11
-
$8,125 SGD
View
Price last confirmed 21 days ago
Retailer 12
-
$8,125 SGD
View
Price last confirmed 20 days ago
B
Retailer 13
-
$8,139 SGD
View
B
Retailer 14
-
$8,421 SGD
View
Final sale: no returns
B
Retailer 15
-
$8,446 SGD
View
B
Retailer 16
-
$8,852 SGD
View
Retailer 17
-
$9,376 SGD
View
Price last confirmed 19 days ago
Retailer 18
-
$11,059 SGD
View
Price last confirmed 15 days ago
B
Retailer 19
-
$11,133 SGD
View
B
Retailer 20
-
$13,406 SGD
View
Most Expensive
NZ Jewellers
b58c3e6e-0cfd-4753-84d8-470d4dc6847e · Oct 17
$13,591 SGD
$10,605 USD
View
Price last confirmed 20 days ago
20 more retailers have this diamond
Prices start from $7,172 SGDSave up to $6,234 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
$7,172 SGD