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Heart|Natural|GIA

1.23ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6237766192

Certificate GIA 6237766192

Diamond specifications and retailer prices

From $2,983 USD
As of November 1, 2026
Save $3,221 USD (52%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,204 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart 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 6237766192. Listed at 11 retailers as of November 1, 2026, with prices from $2,983 to $6,204, a $3,221 spread on the same certified stone. MOH London lists it at $6,204. 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

1.23
Carat
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6237766192
Dimensions7.32 × 5.50 × 3.71 mm
L/W Ratio1.33
Culet sizeNone
Top View
7.32 mm5.50 mm1.23 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6237766192
Side View
Table 70.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

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 1
Current: $6,204 USD|Low: $2,983 USD|High: $6,270 USD|Avg: $3,991 USD|-1.1%
MOH London
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 10$2,983 USD
Retailer 7$3,040 USD
Retailer 11$3,062 USD
Retailer 8$3,185 USD
Retailer 12$3,373 USD
Retailer 2$3,667 USD
Retailer 6$3,877 USD
Retailer 3$4,200 USD
Retailer 5$4,342 USD
Retailer 4$4,621 USD
Retailer 9$5,412 USD
MOH London$6,204 USD

20 data points across 12 retailers

11 retailers$2,983 USD to $6,204 USD

B+
Cheapest Retailer
-
$2,983 USD
B+
Retailer 2
-
$3,040 USD
View
B+
Retailer 3
-
$3,062 USD
View
B+
Retailer 4
-
$3,185 USD
View
B
Retailer 5
-
$3,373 USD
View
B
Retailer 6
-
$3,667 USD
£2,888 GBP
View
B
Retailer 7
-
$3,877 USD
£3,053 GBP
View
Retailer 8
-
$4,200 USD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$4,342 USD
€4,135 EUR
View
B
Retailer 10
-
$5,412 USD
View
Most Expensive
B
MOH London
424A08179 · Nov 1
$6,204 USD
£4,885 GBP
View
10 more retailers have this diamond
Prices start from $2,983 USDSave up to $3,221 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+
1.23ct Heart
$2,983 USD