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Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 7546617126

Certificate GIA 7546617126

Diamond specifications and retailer prices

From £2,013 GBP
As of November 5, 2026
Save £292 GBP (13%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,346 GBP at Queensmith · As of October 9, 2026
View at Queensmith

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 7546617126. Listed at 19 retailers as of November 5, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7546617126
Dimensions6.76 × 7.36 × 4.20 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
6.76 mm7.36 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546617126
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.0%

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 5
Current: £4,346 GBP|Low: £1,712 GBP|High: £4,346 GBP|Avg: £2,459 GBP|+0.8%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 5£1,712 GBP
Retailer 11£1,857 GBP
Retailer 6£1,920 GBP
Retailer 2£2,013 GBP
Retailer 18£2,084 GBP
Retailer 3£2,137 GBP
Retailer 4£2,140 GBP
Retailer 17£2,269 GBP
Retailer 7£2,306 GBP
Retailer 8£2,376 GBP
Retailer 12£2,380 GBP
Retailer 9£2,402 GBP
Retailer 14£2,435 GBP
Retailer 10£2,458 GBP
Retailer 13£2,632 GBP
Retailer 15£2,736 GBP
Retailer 16£3,840 GBP
Queensmith£4,346 GBP

18 data points across 18 retailers

19 retailers£2,013 GBP to £2,306 GBP

Retailer 1
-
£1,712 GBP
Price last confirmed 36 days ago
B+
Retailer 2
-
£2,013 GBP
View
Retailer 3
-
£2,057 GBP
View
Price last confirmed 37 days ago
B
Retailer 4
-
£2,137 GBP
View
Retailer 5
-
£2,269 GBP
View
Price last confirmed 46 days ago
Retailer 6
-
£2,269 GBP
View
Price last confirmed 37 days ago
B+
Retailer 7
-
£2,306 GBP
View
Retailer 8
-
£2,356 GBP
View
Price last confirmed 37 days ago
Retailer 9
-
£2,376 GBP
View
Price last confirmed 29 days ago
Retailer 10
-
£2,402 GBP
View
Price last confirmed 29 days ago
Retailer 11
-
£2,435 GBP
View
Price last confirmed 35 days ago
Retailer 12
-
£2,458 GBP
View
Price last confirmed 29 days ago
Retailer 13
-
£2,619 GBP
View
Price last confirmed 46 days ago
Retailer 14
-
£2,619 GBP
View
Price last confirmed 39 days ago
Retailer 15
-
£2,736 GBP
View
Price last confirmed 38 days ago
Retailer 16
-
£3,840 GBP
View
Price last confirmed 37 days ago
Retailer 17
-
£3,954 GBP
View
Price last confirmed 38 days ago
Retailer 18
-
£3,954 GBP
View
Price last confirmed 48 days ago
Most Expensive
Queensmith
7546617126 · Oct 9
£4,346 GBP
View
Price last confirmed 28 days ago
18 more retailers have this diamond
Prices start from £2,013 GBPSave up to £292 GBP

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
£2,013 GBP