CaratHunter
Plans
Marquise|Natural|GIA

1.21ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6555372918

Certificate GIA 6555372918

Diamond specifications and retailer prices

From $3,358 SGD
As of November 5, 2026
Save $3,852 SGD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,210 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555372918. Listed at 13 retailers as of November 5, 2026, with prices from $3,358 to $7,210, a $3,852 spread on the same certified stone. NZ Jewellers lists it at $7,210. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle41.16°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 6555372918
Dimensions10.55 × 5.49 × 3.51 mm
L/W Ratio1.92
Culet sizeNone
Top View
10.55 mm5.49 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6555372918
Side View
Table 57.0%Crown 41.16°Girdle: STK-VTKPavilion 40.57°Culet: NoneDepth 63.9%

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: $7,210 SGD|Low: $2,688 SGD|High: $7,210 SGD|Avg: $3,524 SGD
NZ Jewellers
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 5$2,688 SGD
Retailer 6$2,919 SGD
Retailer 3$3,114 SGD
Retailer 10$3,358 SGD
Retailer 16$3,560 SGD
Retailer 12$3,617 SGD
Retailer 7$3,737 SGD
Retailer 13$3,749 SGD
Retailer 8$3,827 SGD
Retailer 11$4,120 SGD
Retailer 2$4,224 SGD
Retailer 14$4,236 SGD
Retailer 9$4,282 SGD
Retailer 4$4,656 SGD
Retailer 15$5,342 SGD
NZ Jewellers$7,210 SGD

31 data points across 16 retailers

13 retailers$3,358 SGD to $7,210 SGD

Retailer 1
-
$2,919 SGD
Price last confirmed 21 days ago
Retailer 2
-
$3,114 SGD
View
Price last confirmed 18 days ago
B+
Retailer 3
-
$3,358 SGD
View
B+
Retailer 4
-
$3,617 SGD
View
B+
Retailer 5
-
$3,722 SGD
View
B+
Retailer 6
-
$3,749 SGD
View
B
Retailer 7
-
$4,120 SGD
View
B
Retailer 8
-
$4,224 SGD
View
B
Retailer 9
-
$4,236 SGD
View
B
Retailer 10
-
$4,282 SGD
View
Retailer 11
-
$4,656 SGD
View
Price last confirmed 19 days ago
B
Retailer 12
-
$5,342 SGD
View
Most Expensive
C
NZ Jewellers
bb823756-70fd-443a-9a0a-294775cc99d0 · Nov 5
$7,210 SGD
$5,626 USD
View
12 more retailers have this diamond
Prices start from $3,358 SGDSave up to $3,852 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+
1.21ct Marquise
$3,358 SGD