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Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6555455676

Certificate GIA 6555455676

Diamond specifications and retailer prices

From $2,189 USD
HK$17,100 HKD
Save $3,962 USD (64%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,151 USD at NZ Jewellers
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded H 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 6555455676. Listed at 24 retailers, with prices from $2,189 to $6,151 at NZ Jewellers, a $3,962 spread on the same certified stone. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555455676
Dimensions6.73 × 7.43 × 4.26 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.73 mm7.43 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555455676
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.3%

Caratlytics Score

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

Price History

Last verified: Sep 29
Current: $6,151 USD|Low: $2,189 USD|High: $6,151 USD|Avg: $3,347 USD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 8
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Retailer 11
Retailer 12
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Retailer 19
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Retailer 22
October 1, 2026
Retailer 21$2,189 USD
Retailer 13$2,370 USD
Retailer 10$2,489 USD
Retailer 3$2,711 USD
Retailer 8$2,743 USD
Retailer 9$2,745 USD
Retailer 17$2,897 USD
Retailer 5$2,942 USD
Retailer 7$2,942 USD
Retailer 19$3,055 USD
Retailer 11$3,060 USD
Retailer 15$3,081 USD
Retailer 22$3,083 USD
Retailer 12$3,084 USD
Retailer 14$3,181 USD
Retailer 18$3,295 USD
Retailer 6$3,395 USD
Retailer 16$3,399 USD
Retailer 20$3,547 USD
Retailer 4$4,980 USD
Retailer 2$5,715 USD
NZ Jewellers$6,151 USD

23 data points across 22 retailers

24 retailers$2,189 USD to $6,151 USD

B+
Cheapest Retailer
-
$2,189 USD
HK$17,100 HKD
B+
Retailer 2
-
$2,370 USD
₹225,718 INR
View
B+
Retailer 3
-
$2,489 USD
View
B+
Retailer 4
-
$2,553 USD
SGD 3,450 SGD
View
B
Retailer 5
-
$2,641 USD
View
B
Retailer 6
-
$2,711 USD
View
B
Retailer 7
-
$2,743 USD
View
B
Retailer 8
-
$2,745 USD
View
B
Retailer 9
-
$2,897 USD
£2,281 GBP
View
B
Retailer 10
-
$2,942 USD
View
B
Retailer 11
-
$2,942 USD
View
B
Retailer 12
-
$3,055 USD
View
B
Retailer 13
-
$3,060 USD
A$4,708 AUD
View
B
Retailer 14
-
$3,081 USD
SGD 4,163 SGD
View
B
Retailer 15
-
$3,084 USD
View
B
Retailer 16
-
$3,089 USD
£2,433 GBP
View
B
Retailer 17
-
$3,181 USD
View
B
Retailer 18
-
$3,295 USD
A$5,069 AUD
View
B
Retailer 19
-
$3,395 USD
View
B
Retailer 20
-
$3,399 USD
€3,237 EUR
View
B
Retailer 21
-
$3,547 USD
ZAR 57,310 ZAR
View
B
Retailer 22
-
$4,980 USD
£3,921 GBP
View
B
Retailer 23
-
$5,715 USD
£4,500 GBP
View
Most Expensive
C
NZ Jewellers
2874fe00-2f51-4ec2-be4b-95dc082977c9 · Sep 30
$6,151 USD
View
23 more retailers have this diamond
Prices start from $2,189 USDSave up to $3,962 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.

B+
1.20ct Heart
$2,189 USD