Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 7442234987

Certificate GIA 7442234987

Diamond specifications and retailer prices

From $2,069 USD
As of November 6, 2026
Save $748 USD (27%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,035 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7442234987. Listed at 11 retailers as of November 6, 2026, with a 36% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7442234987
Dimensions6.25 × 5.75 × 3.96 mm
L/W Ratio1.09
Top View
6.25 mm5.75 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7442234987
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.8%

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: $4,035 USD|Low: $1,723 USD|High: $4,061 USD|Avg: $2,656 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$2,094 USD
Retailer 7$2,222 USD
Retailer 5$2,294 USD
Retailer 8$2,295 USD
Retailer 4$2,795 USD
Retailer 3$2,817 USD
Retailer 6$2,820 USD
MOH London$4,035 USD

46 data points across 8 retailers

11 retailers$2,069 USD to $2,817 USD

B+
Cheapest Retailer
-
$2,069 USD
B+
Retailer 2
-
$2,094 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,222 USD
View
B+
Retailer 4
-
$2,294 USD
View
B
Retailer 5
-
$2,295 USD
View
B
Retailer 6
-
$2,311 USD
View
B
Retailer 7
-
$2,429 USD
View
B
Retailer 8
-
$2,795 USD
View
B
Retailer 9
-
$2,817 USD
View
Retailer 10
-
$2,820 USD
View
Price last confirmed 30 days ago
Most Expensive
MOH London
CFEA340F3 · Oct 29
$4,035 USD
£3,177 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $2,069 USDSave up to $748 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 Heart
$2,069 USD