CaratHunter
Plans
Round|Lab Grown|IGI

0.51ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG407936487

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407936487

Diamond specifications and retailer prices

From $321 USD
As of November 3, 2026
Save $1,273 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,594 USD at MOH London · As of November 3, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG407936487 or 407936487. Listed at 13 retailers as of November 3, 2026, with prices from $321 to $1,594, a $1,273 spread on the same certified stone. MOH London lists it at $1,594. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407936487
Dimensions5.10 × 5.11 × 3.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
5.10 mm5.11 mm0.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407936487
Side View
Table 56.5%Crown 36°Girdle: MED-STKPavilion 41°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: Nov 3
Current: $1,594 USD|Low: $308 USD|High: $1,613 USD|Avg: $790 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 12$321 USD
Retailer 13$340 USD
Retailer 3$358 USD
Retailer 4$372 USD
Retailer 14$398 USD
Retailer 16$398 USD
Retailer 5$569 USD
Retailer 15$646 USD
Retailer 2$722 USD
Retailer 10$728 USD
Retailer 6$765 USD
Retailer 7$769 USD
Retailer 11$1,166 USD
Retailer 17$1,278 USD
Retailer 8$1,554 USD
MOH London$1,594 USD
Retailer 9$1,598 USD

24 data points across 17 retailers

13 retailers$321 USD to $1,594 USD

A
Cheapest Retailer
-
$321 USD
A
Retailer 2
-
$340 USD
View
A
Retailer 3
-
$358 USD
View
Final sale: no returns
A
Retailer 4
-
$372 USD
View
A
Retailer 5
-
$398 USD
View
Retailer 6
-
$398 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$646 USD
View
B+
Retailer 8
-
$722 USD
ZAR 11,659 ZAR
View
B+
Retailer 9
-
$728 USD
€693 EUR
View
B
Retailer 10
-
$1,166 USD
View
B
Retailer 11
-
$1,278 USD
View
B
Retailer 12
-
$1,554 USD
£1,224 GBP
View
Most Expensive
B
MOH London
LG407936487 · Nov 3
$1,594 USD
£1,255 GBP
View
12 more retailers have this diamond
Prices start from $321 USDSave up to $1,273 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
$321 USD