Round|Natural|GIA

0.43ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1485758773

Certificate GIA 1485758773

Diamond specifications and retailer prices

From $398 USD
As of October 28, 2026
Save $581 USD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,616 USD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 0.43ct natural round diamond

This 0.43ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1485758773. Listed at 18 retailers as of October 28, 2026, with a 146% 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

0.43
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1485758773
Dimensions4.78 × 4.81 × 3.01 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
4.78 mm4.81 mm0.43 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1485758773
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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: Oct 28
Current: $520 USD|Low: $411 USD|High: $986 USD|Avg: $630 USD|+6.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$411 USD
Retailer 6$462 USD
Retailer 1$520 USD
Retailer 5$572 USD
Retailer 2$644 USD
Retailer 3$870 USD
Retailer 4$979 USD

40 data points across 7 retailers

18 retailers$398 USD to $979 USD

Retailer 1
-
$382 USD
Price last confirmed 43 days ago
Retailer 2
-
$382 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$398 USD
View
Retailer 4
-
$411 USD
View
Price last confirmed 23 days ago
Retailer 5
-
$426 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$490 USD
View
B+
Retailer 7
-
$490 USD
View
B+
Retailer 8
-
$500 USD
View
B+
Retailer 9
-
$501 USD
View
Retailer 10
-
$514 USD
View
Price last confirmed 39 days ago
Retailer 11
-
$514 USD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$520 USD
£409 GBP
View
B+
Retailer 13
-
$572 USD
View
B+
Retailer 14
-
$644 USD
€613 EUR
View
B
Retailer 15
-
$870 USD
£685 GBP
View
B
Retailer 16
-
$979 USD
£771 GBP
View
Retailer 17
-
$1,616 USD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
0e8d26a1-d705-4269-9a85-01389a435517 · Sep 21
$1,616 USD
View
Price last confirmed 40 days ago
17 more retailers have this diamond
Prices start from $398 USDSave up to $581 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.

A
0.43ct Round
$398 USD