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Marquise|Natural|GIA

1.21ct J SI2 Marquise Natural Diamond

VG • J/SI2 • GIA 6233870363

Certificate GIA 6233870363

Diamond specifications and retailer prices

From $4,046 SGD
As of November 5, 2026
Save $4,541 SGD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,252 SGD at NZ Jewellers · As of October 21, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6233870363. Listed at 17 retailers as of November 2, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle40.57°
Pavilion angle39.78°
OriginNatural
Grading LabGIA
CertificateGIA 6233870363
Dimensions10.32 × 5.53 × 3.51 mm
L/W Ratio1.87
Top View
10.32 mm5.53 mm1.21 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6233870363
Side View
Table 62.0%Crown 40.57°Girdle: STK-VTKPavilion 39.78°Culet: NoneDepth 63.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,252 SGD|Low: $4,046 SGD|High: $8,987 SGD|Avg: $5,614 SGD|-4.2%
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
November 6, 2026
Retailer 10$4,046 SGD
Retailer 12$4,129 SGD
Retailer 1$4,252 SGD
Retailer 3$4,519 SGD
Retailer 8$4,655 SGD
Retailer 5$4,811 SGD
Retailer 4$4,996 SGD
Retailer 7$5,169 SGD
Retailer 2$5,203 SGD
Retailer 13$5,203 SGD
Retailer 14$5,370 SGD
Retailer 9$5,784 SGD
Retailer 6$6,009 SGD
Retailer 11$8,587 SGD

42 data points across 14 retailers

17 retailers$4,046 SGD to $8,587 SGD

B
Cheapest Retailer
-
$4,046 SGD
B
Retailer 2
-
$4,129 SGD
View
B
Retailer 3
-
$4,252 SGD
View
Final sale: no returns
B
Retailer 4
-
$4,519 SGD
View
B
Retailer 5
-
$4,655 SGD
View
Retailer 6
-
$4,811 SGD
View
Price last confirmed 22 days ago
Retailer 7
-
$4,811 SGD
View
Price last confirmed 18 days ago
Retailer 8
-
$4,996 SGD
View
Price last confirmed 21 days ago
B
Retailer 9
-
$5,169 SGD
View
B
Retailer 10
-
$5,203 SGD
View
B
Retailer 11
-
$5,203 SGD
View
B
Retailer 12
-
$5,370 SGD
View
Retailer 13
-
$5,551 SGD
View
Price last confirmed 17 days ago
B
Retailer 14
-
$5,784 SGD
View
Retailer 15
-
$6,009 SGD
View
Price last confirmed 23 days ago
B
Retailer 16
-
$8,587 SGD
View
Most Expensive
NZ Jewellers
0ce88f21-bf3e-4418-afd3-6386eb3e129f · Oct 21
$9,252 SGD
$7,219 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from $4,046 SGDSave up to $4,541 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
$4,046 SGD