CaratHunter
Plans
Heart|Natural|GIA

1.21ct I SI2 Heart Natural Diamond

VG • I/SI2 • GIA 5383233831

Certificate GIA 5383233831

Diamond specifications and retailer prices

From $5,565 SGD
As of November 6, 2026
Save $1,333 SGD (19%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $11,037 SGD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5383233831. Listed at 8 retailers as of November 5, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5383233831
Dimensions7.52 × 6.48 × 4.38 mm
L/W Ratio1.16
Culet sizeNone
Top View
7.52 mm6.48 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5383233831
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,037 SGD|Low: $5,979 SGD|High: $11,037 SGD|Avg: $7,606 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$5,979 SGD
Retailer 5$5,979 SGD
Retailer 6$5,979 SGD
Retailer 2$6,484 SGD
Retailer 7$6,898 SGD
Retailer 3$10,481 SGD
NZ Jewellers$11,037 SGD

40 data points across 7 retailers

8 retailers$5,565 SGD to $6,898 SGD

B
Cheapest Retailer
-
$5,565 SGD
Retailer 2
-
$5,979 SGD
View
Price last confirmed 9 days ago
B
Retailer 3
-
$5,979 SGD
View
B
Retailer 4
-
$5,979 SGD
View
B
Retailer 5
-
$6,484 SGD
View
B
Retailer 6
-
$6,898 SGD
View
Retailer 7
-
$10,481 SGD
View
Price under review
Most Expensive
NZ Jewellers
478d2fac-ecc2-48bd-8cdf-156eebd0b3a0 · Nov 5
$11,037 SGD
$8,612 USD
View
Price under review
7 more retailers have this diamond
Prices start from $5,565 SGDSave up to $1,333 SGD

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
$5,565 SGD