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Heart|Natural|GIA

1.20ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 6535689578

Certificate GIA 6535689578

Diamond specifications and retailer prices

From £1,740 GBP
$2,331 USD
As of October 30, 2026
Save £2,321 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,061 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G 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 6535689578. Listed at 13 retailers as of October 30, 2026, with prices from £1,740 to £4,061, a £2,321 spread on the same certified stone. NZ Jewellers lists it at £4,061. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535689578
Dimensions6.34 × 7.14 × 4.48 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
Additional clouds are not shown. pinpoints are not shown.
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural, Cavity
Top View
6.34 mm7.14 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535689578
Side View
Table 56.0%CrownGirdle: MED-THPavilionCulet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,061 GBP|Low: £1,703 GBP|High: £4,061 GBP|Avg: £2,238 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11£1,740 GBP
Retailer 3£1,792 GBP
Retailer 8£1,798 GBP
Retailer 4£1,920 GBP
Retailer 2£1,942 GBP
Retailer 9£1,942 GBP
Retailer 10£2,017 GBP
Retailer 6£2,076 GBP
Retailer 7£2,241 GBP
Retailer 5£3,403 GBP
NZ Jewellers£4,061 GBP

30 data points across 11 retailers

13 retailers£1,740 GBP to £4,061 GBP

A
Cheapest Retailer
-
£1,740 GBP
$2,331 USD
B+
Retailer 2
-
£1,792 GBP
$2,401 USD
View
Final sale: no returns
B+
Retailer 3
-
£1,798 GBP
$2,409 USD
View
B+
Retailer 4
-
£1,811 GBP
$2,426 USD
View
B+
Retailer 5
-
£1,920 GBP
View
B+
Retailer 6
-
£1,942 GBP
$2,602 USD
View
B+
Retailer 7
-
£1,942 GBP
$2,602 USD
View
B+
Retailer 8
-
£2,017 GBP
$2,703 USD
View
B+
Retailer 9
-
£2,047 GBP
$2,743 USD
View
B+
Retailer 10
-
£2,076 GBP
View
B+
Retailer 11
-
£2,241 GBP
$3,003 USD
View
B
Retailer 12
-
£3,403 GBP
View
Most Expensive
B
NZ Jewellers
5af07e36-f9dd-4528-b29f-52dcb76772ba · Oct 30
£4,061 GBP
$5,441 USD
View
12 more retailers have this diamond
Prices start from £1,740 GBPSave up to £2,321 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.

A
1.20ct Heart
£1,740 GBP