Heart|Natural|GIA

1.21ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 6542374552

Certificate GIA 6542374552

Diamond specifications and retailer prices

From $5,128 NZD
As of November 6, 2026
Save $5,883 NZD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,011 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542374552. Listed at 17 retailers as of November 5, 2026, with prices from $5,128 to $11,011, a $5,883 spread on the same certified stone. NZ Jewellers lists it at $11,011. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542374552
Dimensions7.28 × 6.59 × 4.15 mm
L/W Ratio1.10
Top View
7.28 mm6.59 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542374552
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.0%

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: $11,011 NZD|Low: $5,128 NZD|High: $11,011 NZD|Avg: $6,971 NZD
NZ Jewellers
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
November 7, 2026
Retailer 4$5,128 NZD
Retailer 5$5,377 NZD
Retailer 3$5,726 NZD
Retailer 14$5,726 NZD
Retailer 11$5,946 NZD
Retailer 8$6,130 NZD
Retailer 12$6,492 NZD
Retailer 7$6,519 NZD
Retailer 13$6,606 NZD
Retailer 6$6,698 NZD
Retailer 9$7,356 NZD
Retailer 10$7,713 NZD
Retailer 2$10,513 NZD
NZ Jewellers$11,011 NZD

31 data points across 14 retailers

17 retailers$5,128 NZD to $11,011 NZD

B+
Cheapest Retailer
-
$5,128 NZD
B+
Retailer 2
-
$5,365 NZD
View
Retailer 3
-
$5,377 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$5,726 NZD
View
Retailer 5
-
$5,726 NZD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$5,760 NZD
View
B+
Retailer 7
-
$5,946 NZD
View
B+
Retailer 8
-
$6,130 NZD
View
B
Retailer 9
-
$6,492 NZD
View
B
Retailer 10
-
$6,519 NZD
View
B
Retailer 11
-
$6,606 NZD
View
Retailer 12
-
$6,698 NZD
View
Price last confirmed 39 days ago
Retailer 13
-
$7,160 NZD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$7,356 NZD
View
B
Retailer 15
-
$7,713 NZD
View
B
Retailer 16
-
$10,513 NZD
View
Most Expensive
B
NZ Jewellers
72be4621-ea94-4ed2-973d-2c86eee05f1b · Nov 5
$11,011 NZD
$6,104 USD
View
16 more retailers have this diamond
Prices start from $5,128 NZDSave up to $5,883 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+
1.21ct Heart
$5,128 NZD