Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6535356516

Certificate GIA 6535356516

Diamond specifications and retailer prices

From $5,264 NZD
As of November 6, 2026
Save $3,344 NZD (39%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,288 NZD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535356516. Listed at 19 retailers as of November 5, 2026, with a 64% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535356516
Dimensions6.31 × 7.17 × 4.53 mm
L/W Ratio1.14
Top View
6.31 mm7.17 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535356516
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.1%

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: $7,143 NZD|Low: $5,217 NZD|High: $11,936 NZD|Avg: $7,286 NZD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 9$5,264 NZD
Retailer 2$6,023 NZD
Retailer 8$6,207 NZD
Retailer 5$6,251 NZD
Retailer 11$6,508 NZD
Retailer 13$6,622 NZD
Retailer 6$6,642 NZD
Retailer 1$7,143 NZD
Retailer 4$7,317 NZD
Retailer 12$7,562 NZD
Retailer 3$7,571 NZD
Retailer 7$8,608 NZD
Retailer 10$11,812 NZD

44 data points across 13 retailers

19 retailers$5,264 NZD to $8,608 NZD

B+
Cheapest Retailer
-
$5,264 NZD
Retailer 2
-
$6,023 NZD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$6,207 NZD
View
B
Retailer 4
-
$6,508 NZD
View
Final sale: no returns
B
Retailer 5
-
$6,622 NZD
View
B
Retailer 6
-
$6,642 NZD
View
B
Retailer 7
-
$6,738 NZD
View
Retailer 8
-
$7,053 NZD
View
Price last confirmed 9 days ago
Retailer 9
-
$7,053 NZD
View
Price last confirmed 9 days ago
Retailer 10
-
$7,053 NZD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$7,143 NZD
View
B
Retailer 12
-
$7,317 NZD
View
Retailer 13
-
$7,562 NZD
View
Price last confirmed 34 days ago
B
Retailer 14
-
$7,571 NZD
View
B
Retailer 15
-
$8,139 NZD
View
B
Retailer 16
-
$8,139 NZD
View
B
Retailer 17
-
$8,608 NZD
View
Retailer 18
-
$11,812 NZD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
35c1ecc9-184e-4d71-b1db-0a13968a14e5 · Oct 30
$12,288 NZD
$6,812 USD
View
Price last confirmed 7 days ago
18 more retailers have this diamond
Prices start from $5,264 NZDSave up to $3,344 NZD

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
$5,264 NZD