Heart|Natural|GIA

1.31ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 6535430494

Certificate GIA 6535430494

Diamond specifications and retailer prices

From $4,124 USD
As of November 5, 2026
Save $3,503 USD (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,708 USD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6535430494. Listed at 5 retailers as of November 4, 2026, with a 85% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.31
Carat
D
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535430494
Dimensions7.42 × 6.15 × 3.91 mm
L/W Ratio1.21
Top View
7.42 mm6.15 mm1.31 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535430494
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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 5
Current: $4,124 USD|Low: $3,797 USD|High: $8,002 USD|Avg: $4,962 USD|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7$4,103 USD
Retailer 1$4,124 USD
Retailer 2$4,219 USD
Retailer 3$4,375 USD
Retailer 5$4,656 USD
Retailer 10$4,734 USD
Retailer 9$5,015 USD
Retailer 8$5,017 USD
Retailer 6$5,020 USD
Retailer 11$5,211 USD
Retailer 4$7,627 USD

15 data points across 11 retailers

5 retailers$4,124 USD to $7,627 USD

B+
Cheapest Retailer
-
$4,124 USD
Retailer 2
-
$4,528 USD
View
Price last confirmed 45 days ago
Retailer 3
-
$4,656 USD
View
Price last confirmed 9 days ago
B
Retailer 4
-
$7,627 USD
View
Most Expensive
NZ Jewellers
bf7311fe-6661-4c0b-acfa-094dc50d6ea3 · Sep 21
$8,708 USD
View
Price last confirmed 46 days ago
4 more retailers have this diamond
Prices start from $4,124 USDSave up to $3,503 USD

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+
1.31ct Heart
$4,124 USD