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Princess|Natural|GIA

1.20ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 1553983240

Certificate GIA 1553983240

Diamond specifications and retailer prices

From $3,173 USD
As of November 6, 2026
Save $2,547 USD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,720 USD at MOH London · As of November 7, 2026
View at MOH London

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-carat band, graded F 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 1553983240. Listed at 15 retailers as of November 6, 2026, with prices from $3,173 to $5,720, a $2,547 spread on the same certified stone. MOH London lists it at $5,720. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553983240
Dimensions5.69 × 5.53 × 4.18 mm
L/W Ratio1.03
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural, Natural
Top View
5.69 mm5.53 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553983240
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 75.6%

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 6
Current: $5,720 USD|Low: $2,972 USD|High: $5,781 USD|Avg: $3,878 USD|+6.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$3,173 USD
Retailer 3$3,230 USD
Retailer 8$3,310 USD
Retailer 10$3,453 USD
Retailer 5$3,547 USD
Retailer 2$3,612 USD
Retailer 6$4,002 USD
Retailer 7$4,197 USD
Retailer 4$4,399 USD
MOH London$5,720 USD

46 data points across 10 retailers

15 retailers$3,173 USD to $5,720 USD

B+
Cheapest Retailer
-
$3,173 USD
Final sale: no returns
Retailer 2
-
$3,221 USD
View
Price last confirmed 30 days ago
Retailer 3
-
$3,221 USD
View
Price last confirmed 30 days ago
B+
Retailer 4
-
$3,230 USD
View
B+
Retailer 5
-
$3,310 USD
View
Retailer 6
-
$3,345 USD
View
Price last confirmed 39 days ago
Retailer 7
-
$3,453 USD
View
Price last confirmed 34 days ago
B+
Retailer 8
-
$3,547 USD
View
B+
Retailer 9
-
$3,612 USD
View
Retailer 10
-
$3,716 USD
View
Price last confirmed 39 days ago
B
Retailer 11
-
$4,002 USD
View
B
Retailer 12
-
$4,197 USD
View
B
Retailer 13
-
$4,399 USD
View
Retailer 14
-
$5,611 USD
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
1ED2D5860 · Nov 7
$5,720 USD
£4,504 GBP
View
14 more retailers have this diamond
Prices start from $3,173 USDSave up to $2,547 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 Princess
$3,173 USD