Round|Natural|GIA

0.40ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 6492539118

Certificate GIA 6492539118

Diamond specifications and retailer prices

From $243 USD
As of November 6, 2026
Save $1,012 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,255 USD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492539118. Listed at 14 retailers as of November 4, 2026, with prices from $243 to $1,255, a $1,012 spread on the same certified stone. NZ Jewellers lists it at $1,255. 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

0.40
Carat
L
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6492539118
Dimensions4.71 × 4.73 × 2.89 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
4.71 mm4.73 mm0.40 ctL / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6492539118
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $557 USD|Low: $290 USD|High: $568 USD|Avg: $399 USD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$292 USD
Retailer 6$309 USD
Retailer 5$320 USD
Retailer 3$344 USD
Retailer 4$431 USD
Retailer 2$468 USD
Retailer 8$480 USD
Retailer 1$557 USD

44 data points across 8 retailers

14 retailers$243 USD to $1,255 USD

A
Cheapest Retailer
-
$243 USD
B+
Retailer 2
-
$277 USD
View
Retailer 3
-
$298 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$309 USD
View
B+
Retailer 5
-
$320 USD
View
B+
Retailer 6
-
$344 USD
View
B+
Retailer 7
-
$373 USD
View
B+
Retailer 8
-
$374 USD
View
B+
Retailer 9
-
$431 USD
View
B
Retailer 10
-
$468 USD
View
B
Retailer 11
-
$480 USD
View
B
Retailer 12
-
$505 USD
View
B
Retailer 13
-
$557 USD
View
Most Expensive
C
NZ Jewellers
7df04fd7-c2ff-4f23-bf40-c0b1edd1ff7b · Nov 4
$1,255 USD
View
13 more retailers have this diamond
Prices start from $243 USDSave up to $1,012 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
0.40ct Round
$243 USD