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Radiant|Natural|GIA

1.20ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 2554784839

Certificate GIA 2554784839

Diamond specifications and retailer prices

From $2,700 USD
As of November 6, 2026
Save $3,256 USD (55%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,956 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded H 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 2554784839. Listed at 6 retailers as of November 4, 2026, with prices from $2,700 to $5,956, a $3,256 spread on the same certified stone. MOH London lists it at $5,956. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554784839
Dimensions7.27 × 5.44 × 3.78 mm
L/W Ratio1.34
Girdle conditionSlightly Thick to Thick
Culet sizeNone
Top View
7.27 mm5.44 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554784839
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,956 USD|Low: $2,675 USD|High: $6,003 USD|Avg: $3,791 USD|+0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 5$2,700 USD
Retailer 8$2,794 USD
Retailer 6$2,956 USD
Retailer 3$3,560 USD
Retailer 2$3,695 USD
Retailer 9$3,706 USD
Retailer 7$3,890 USD
Retailer 4$4,156 USD
MOH London$5,956 USD

42 data points across 9 retailers

6 retailers$2,700 USD to $5,956 USD

B+
Cheapest Retailer
-
$2,700 USD
B+
Retailer 2
-
$2,956 USD
View
B+
Retailer 3
-
$3,560 USD
View
B
Retailer 4
-
$3,695 USD
View
B
Retailer 5
-
$4,156 USD
View
Most Expensive
B
MOH London
CF378791B · Nov 4
$5,956 USD
£4,690 GBP
View
5 more retailers have this diamond
Prices start from $2,700 USDSave up to $3,256 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 Radiant
$2,700 USD