Round|Natural|IGI

0.51ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 483109345

Shape and cutting style on the report: Round brilliant

Certificate IGI 483109345

Diamond specifications and retailer prices

From $263 USD
As of November 5, 2026
Save $929 USD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,192 USD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 483109345. Listed at 8 retailers as of November 4, 2026, with prices from $263 to $1,192, a $929 spread on the same certified stone. NZ Jewellers lists it at $1,192. 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

0.51
Carat
L
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 483109345
Dimensions5.20 × 5.23 × 3.09 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
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Top View
5.20 mm5.23 mm0.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 483109345
Side View
Table 60.5%Crown 33.8°Girdle: ThinPavilion 41°Culet: NoneDepth 59.4%

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 5
Current: $1,192 USD|Low: $263 USD|High: $1,192 USD|Avg: $433 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$263 USD
Retailer 5$275 USD
Retailer 9$283 USD
Retailer 4$293 USD
Retailer 8$354 USD
Retailer 6$358 USD
Retailer 11$393 USD
Retailer 3$395 USD
Retailer 2$452 USD
Retailer 10$468 USD
NZ Jewellers$1,192 USD

15 data points across 11 retailers

8 retailers$263 USD to $1,192 USD

A
Cheapest Retailer
-
$263 USD
Retailer 2
-
$283 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$293 USD
View
B+
Retailer 4
-
$354 USD
View
B+
Retailer 5
-
$358 USD
View
B+
Retailer 6
-
$393 USD
View
B+
Retailer 7
-
$452 USD
View
Most Expensive
C
NZ Jewellers
642ef4bc-e0b5-49b4-8f0a-4d2447f01fa6 · Nov 4
$1,192 USD
View
7 more retailers have this diamond
Prices start from $263 USDSave up to $929 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
0.51ct Round
$263 USD