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Heart|Natural|GIA

1.20ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1538198297

Certificate GIA 1538198297

Diamond specifications and retailer prices

From $3,671 NZD
As of November 6, 2026
Save $6,321 NZD (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,206 NZD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1538198297. Listed at 19 retailers as of November 5, 2026, with a 172% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1538198297
Dimensions7.21 × 6.70 × 4.41 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.21 mm6.70 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538198297
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.2%

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: Nov 6
Current: $10,206 NZD|Low: $3,671 NZD|High: $10,229 NZD|Avg: $6,039 NZD|-0.2%
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
November 6, 2026
Retailer 6$3,671 NZD
Retailer 2$3,842 NZD
Retailer 14$4,333 NZD
Retailer 8$4,412 NZD
Retailer 10$4,699 NZD
Retailer 16$4,779 NZD
Retailer 9$4,809 NZD
Retailer 3$4,963 NZD
Retailer 7$5,033 NZD
Retailer 13$5,058 NZD
Retailer 12$5,103 NZD
Retailer 4$5,195 NZD
Retailer 5$5,515 NZD
Retailer 11$5,933 NZD
Retailer 15$8,350 NZD
Retailer 17$9,992 NZD
Queensmith$10,206 NZD

23 data points across 17 retailers

19 retailers$3,671 NZD to $9,992 NZD

A
Cheapest Retailer
-
$3,671 NZD
A
Retailer 2
-
$3,842 NZD
View
A
Retailer 3
-
$4,333 NZD
View
A
Retailer 4
-
$4,412 NZD
View
Final sale: no returns
B+
Retailer 5
-
$4,602 NZD
View
A
Retailer 6
-
$4,699 NZD
View
A
Retailer 7
-
$4,779 NZD
View
Retailer 8
-
$4,809 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$4,910 NZD
View
B+
Retailer 10
-
$4,963 NZD
View
B+
Retailer 11
-
$5,033 NZD
View
B+
Retailer 12
-
$5,058 NZD
View
B+
Retailer 13
-
$5,103 NZD
View
B+
Retailer 14
-
$5,195 NZD
View
B+
Retailer 15
-
$5,515 NZD
View
B+
Retailer 16
-
$5,933 NZD
View
B
Retailer 17
-
$8,350 NZD
View
B
Retailer 18
-
$9,992 NZD
View
Most Expensive
Queensmith
1538198297 · Oct 28
$10,206 NZD
£4,455 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $3,671 NZDSave up to $6,321 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.

A
1.20ct Heart
$3,671 NZD