Marquise|Natural|GIA

1.20ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 2556641650

Certificate GIA 2556641650

Diamond specifications and retailer prices

From $5,603 USD
As of November 5, 2026
Save $962 USD (15%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,381 USD at NZ Jewellers · As of September 20, 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556641650. Listed at 15 retailers as of November 5, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
E
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.81°
Pavilion angle36.64°
OriginNatural
Grading LabGIA
CertificateGIA 2556641650
Dimensions10.72 × 5.53 × 3.18 mm
L/W Ratio1.94
Culet sizeNone
Top View
10.72 mm5.53 mm1.20 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556641650
Side View
Table 61.0%Crown 35.81°Girdle: THN-VTKPavilion 36.64°Culet: NoneDepth 57.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $6,565 USD|Low: $4,706 USD|High: $9,254 USD|Avg: $6,001 USD|+18.8%
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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 11$4,706 USD
Retailer 8$4,708 USD
Retailer 5$4,904 USD
Retailer 17$5,234 USD
Retailer 9$5,477 USD
Retailer 2$5,554 USD
Retailer 15$5,603 USD
Retailer 18$5,623 USD
Retailer 16$5,909 USD
Retailer 12$5,983 USD
Retailer 7$5,984 USD
Retailer 3$6,280 USD
Retailer 19$6,280 USD
Retailer 4$6,490 USD
Retailer 1$6,565 USD
Retailer 10$6,724 USD
Retailer 13$6,732 USD
Retailer 6$6,844 USD
Retailer 14$9,193 USD

24 data points across 19 retailers

15 retailers$5,603 USD to $6,565 USD

Retailer 1
-
$4,904 USD
Price last confirmed 17 days ago
Retailer 2
-
$5,234 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$5,554 USD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$5,603 USD
View
Retailer 5
-
$5,623 USD
View
Price last confirmed 45 days ago
Retailer 6
-
$5,623 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$5,623 USD
View
Price last confirmed 20 days ago
Retailer 8
-
$5,623 USD
View
Price last confirmed 17 days ago
B
Retailer 9
-
$5,909 USD
View
Retailer 10
-
$5,983 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$6,488 USD
View
Price last confirmed 45 days ago
B
Retailer 12
-
$6,565 USD
View
Retailer 13
-
$6,844 USD
View
Price last confirmed 22 days ago
Retailer 14
-
$9,193 USD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
79785c72-6f9c-4e12-92bc-13f027bcf3ff · Sep 20
$10,381 USD
View
Price last confirmed 46 days ago
14 more retailers have this diamond
Prices start from $5,603 USDSave up to $962 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
$5,603 USD