Marquise|Natural|GIA

1.20ct G SI2 Marquise Natural Diamond

GD • G/SI2 • GIA 2556350209

Certificate GIA 2556350209

Diamond specifications and retailer prices

From $4,136 USD
As of November 1, 2026
Save $4,203 USD (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,756 USD 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556350209. Listed at 14 retailers as of November 1, 2026, with a 102% 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

1.20
Carat
G
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.29°
Pavilion angle37.46°
OriginNatural
Grading LabGIA
CertificateGIA 2556350209
Dimensions9.92 × 5.44 × 3.45 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.92 mm5.44 mm1.20 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556350209
Side View
Table 56.0%Crown 41.29°Girdle: VTN-VTKPavilion 37.46°Culet: NDepth 63.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $5,176 USD|Low: $3,834 USD|High: $8,439 USD|Avg: $5,264 USD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$3,834 USD
Retailer 4$4,136 USD
Retailer 10$4,282 USD
Retailer 8$4,378 USD
Retailer 9$4,743 USD
Retailer 1$5,176 USD
Retailer 6$5,226 USD
Retailer 3$5,473 USD
Retailer 11$5,778 USD
Retailer 5$5,923 USD
Retailer 12$6,230 USD
Retailer 7$8,339 USD

38 data points across 12 retailers

14 retailers$4,136 USD to $8,339 USD

Retailer 1
-
$3,834 USD
Price last confirmed 11 days ago
B
Retailer 2
-
$4,136 USD
View
B
Retailer 3
-
$4,282 USD
View
B
Retailer 4
-
$4,378 USD
View
Final sale: no returns
Retailer 5
-
$4,743 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$4,743 USD
View
Price last confirmed 16 days ago
Retailer 7
-
$4,743 USD
View
Price last confirmed 17 days ago
B
Retailer 8
-
$5,176 USD
£4,076 GBP
View
B
Retailer 9
-
$5,226 USD
£4,115 GBP
View
Retailer 10
-
$5,473 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$5,778 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$5,923 USD
€5,641 EUR
View
C
Retailer 13
-
$8,339 USD
£6,566 GBP
View
Most Expensive
NZ Jewellers
326dbe8b-cb7d-4f4c-ae57-41ef869c7237 · Oct 21
$8,756 USD
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from $4,136 USDSave up to $4,203 USD

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
$4,136 USD